10 Best Acer Travelmate B3 11 Case of 2025

Tested and Reviewed: Top 10 Acer Travelmate B3 11 Case deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Smatree

Smatree Hard EVA Protective Sleeve Compatible for 12.2 inch Acer Chromebook Spin 312, 11.6 inch Acer Chromebook 311, TravelMate B3 TMB311-33-C3FM, TravelMate Spin B3 11 TMB311RN-33 2 in 1 Bag (X8019)

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Editor's bottom line:

“This acer travelmate b3 11 case is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Model No.: X8019: internal dimensions of the case:29.6x21.2x2.7 cm ( 11.7x8.3x1.1 inch )
Compatibility: designed to perfectly fit for 12.2 inch Acer Chromebook Spin 312- CP312-1HN-34Z7 Laptop; 11.6 inch Acer Chromebook 311 - CB311-12H-C5Y7 Laptop; 11.6 inch Acer TravelMate B3 TMB311-33-C3FM Laptop; 11.6 inch Acer TravelMate Spin B3 11 TMB311R-33-C04F/C0JS 2 in 1 Laptop
Anti-Shock: EVA hard sleeve and features internal upgraded shock resistant padding layer, protect your laptop from inadvertent collision and accidental scratches when put in backpack or suitcase
Waterproof: the Smatree sleeve is made of durable 1600d nylon, it obstructs water effectively. Don't worry about splashing water, washable when laptop sleeve case becomes dirty
Fashion Style: unique diamond pattern on the surface makes your case unique, personalize your laptop with its own unique style

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Picked by 397 people today

9.5

Smatree

Smatree Hard EVA Protective Sleeve Case Compatible for 11.6 inch Acer TravelMate B3 TMB311-32-C7GS Laptop Slim and Anti-Shock Case Notebook Bag (X8028)

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Main Highlights

Model No.: X8028: internal dimensions of the case: 30x 21.8x 2.7 cm ( 11.8x 8.6x 1.1 inch)
Compatibility: designed to perfectly fit for 11.6 inch Acer TravelMate B3 TMB311-32-C7GS Laptop
Anti-Shock: EVA hard sleeve and features internal upgraded shock resistant padding layer, protect your laptop from inadvertent collision and accidental scratches when put in backpack or suitcase
Waterproof: the Smatree sleeve is made of durable 1600d nylon, it obstructs water effectively. Don't worry about splashing water, washable when laptop sleeve case becomes dirty
Fashion Style: unique diamond pattern on the surface makes your case unique, personalize your laptop with its own unique style

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9.5

Smatree

Smatree Hard EVA Protective Sleeve Compatible for 12.2 inch Acer Chromebook Spin 312, for 11.6 inch Acer Chromebook 311, for TravelMate B3/Spin B3 TMB311RN-33 2 in 1 Laptop Case, Pink (X8019TP)

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Main Highlights

Model No.: X8019T: internal dimensions of the case:29.6x21.2x1.7 cm ( 11.7x8.3x0.7 inch )
Compatibility: designed to perfectly fit for 12.2 inch Acer Chromebook Spin 312- CP312-1HN-34Z7 Laptop; 11.6 inch Acer Chromebook 311 - CB311-12H-C5Y7 Laptop; 11.6 inch Acer TravelMate B3 TMB311-33-C3FM Laptop; 11.6 inch Acer TravelMate Spin B3 11 TMB311R-33-C04F/C0JS 2 in 1 Laptop
Anti-Shock: EVA hard sleeve and features internal upgraded shock resistant padding layer, protect your laptop from inadvertent collision and accidental scratches when put in backpack or suitcase
Waterproof: the Smatree sleeve is made of durable 1600d nylon, it obstructs water effectively. Don't worry about splashing water, washable when laptop sleeve case becomes dirty
Fashion Style: unique diamond pattern on the surface makes your case unique, personalize your laptop with its own unique style

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9.2

MAMA MOUTH

Laptop Case Cover Sleeve for Acer TravelMate B3 Spin 11 TMB311R-33 TMB311R-33-C9SN/TravelMate B3 11 TMB311-33 TMB311-33-P8UG with Portable Bag with Bag Handle,Black

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Main Highlights

It Specially Designed for Acer TravelMate B3 Spin 11 TMB311R-33 TMB311R-33-C9SN TMB311R-33-P1GS TMB311RN-33-C0JS /TravelMate B3 11 TMB311-33 TMB311-33-P8UG TMB311-33-C4SC TMB311-33-C3FM 11.6 Inch Laptop,Only fit this laptop,Not fit Acer TravelMate B3 Spin 11 TMB311R-32/TravelMate B3 Spin 11 TMB311R-31{{Warning:Most of returned because of choosing wrong model,please confrim your laptop model}}
2 in 1 Design,Protective Case + Portable Bag: It can protect the laptop from scratches and dust during use,but it only takes a second,once the case is turned off,it becomes a portable bag,{Bag Handle Design} convenient for working or playing anywhere.
Unique Four-elastic-rubber & Liner-pad Design: Four-elastic-rubber design can fixed the screen and keyboard,it can solve the problem of loose cover effectively in the process of using laptop;Liner-pad design can improve airflow at the bottom of the laptop,it can effectively solve the problem of heat dissipation.
High Quality Material & Fashion Design: Built from premium synthetic leather exterior and soft microfiber interior-snug fit and durable;handle and small bag design,fashionable and practical,being with excellent portable performance with special {small bag} and pocket for power adaptercordmousecashcard or some other accessories(This case not support "Tablet model").
All procedures are finished by hand-sewing,which can make sure for durable using in future. Our store have 2000+ laptop models cases,search more laptop models's case,please search "your laptop model".

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9.0

Lacdo

Lacdo 360° Protective Chromebook Case 11 Inch Laptop Sleeve for 11 Inch Acer HP Lenovo Dell Samsung ASUS Chromebook Spin 311, 13 Inch Microsoft Surface Pro 11th Copilot+PC/10/9/8/X Computer Bag, Black

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Main Highlights

COMPATIBLE WITH: 11 inch MacBook Air | 13 inch Microsoft New Surface Pro 11th, Copilot+PC 2024 / Surface Pro 10 9 8 X / 12.4" Surface Laptop Go 3 2 1 / 12.3" Surface Pro 7+ 7 6 5 4 3 2 1 | Lenovo Chromebook Flex 3 11" / IdeaPad 3 11 / Chromebook C330 C340 / Lenovo Thinkpad Yoga 11E | ASUS Laptop L210 / ASUS Chromebook 11 / Chromebook C223 C202 11.6" | Acer Chromebook Spin 311 / Acer Chromebook R 11 / Premium R11 | HP Chromebook 11 / Stream 11 / ProBook 11 | Samsung Chromebook Plus V2 2 3 4 Pro.
POWERFUL PROTECTION: Designed with SHOCKPROOF SOFT LINING and THICKENED EDGE, this laptop bag offer decent cushion to reduce the impacts from daily bumps or accidental drops, provide your laptop with 360° all-around protection. Made of ANTI-SCRATCH CANVAS FABRIC with WATERPROOF COATING, this protective laptop sleeve can obstruct the splashing water or rain effectively, dont worry about getting your Chromebook wet.
ENOUGH STORAGE SPACE: Except the MAIN COMPARTMENT for your laptop, this carrying sleeve case bag also has EXTRA TWO FRONT ACCESSORY POCKETS and ONE LARGE COMPARTMENT ON THE BACK to keep small iPad, mouse, charger devices, power cord, cables, earphone, pens, hard drives, power bank etc. STRONG METAL-ZIPPERS glide smoothly in two-way: For convenient and quick access to your laptop and electronic accessories. Lacdo professional laptop bag will keep your items safe and well-organized,
EASY TO CARRY: Grab-handle on top which is stretchable allow you to switch between a laptop briefcase handbag and laptop sleeve bag, make the chromebook case very PORTABLE for your daily laptop carrying and use. Our laptop case with carry handle is SLIM AND LIGHTWEIGHT can be easily slide into a briefcase, backpack bag, providing you with easy portability and convenient use! Perfect for your needs when going to , meeting, or business trip. Let your journey be free and enjoyable!
GREAT LAPTOP COMPANION: Our laptop bag sleeve features durable quality and great protection, it is sleek, stylish, and well-made which is reliable and long-lasting. A delicate gift for your beloved family and friends. A portable and comfy Chromebook sleeve which perfect for work and daily life, business trip, , traveling or home storage! A reliable laptop companion is always with you!

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8.8

MAMA MOUTH

Laptop Protective Case Sleeve for Acer TravelMate B3 11 TMB311-34 TMB311-34T TMB311-34-C6MZ TMB311-34T-C9AJ with Portable Bag with Bag Handle,Red

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Main Highlights

It Specially Designed Laptop case for Acer TravelMate B3 11 TMB311-34 TMB311-34T TMB311-34-C6MZ TMB311-34T-C9AJ 11.6 Inch Laptop,Only fit this laptop,Not fit Acer TravelMate B3 Spin 11 TMB311R-32/TravelMate B3 Spin 11 TMB311R-31{{Warning:Most of returned because of choosing wrong model,please confrim your laptop model}}
2 in 1 Design,Protective Case + Portable Bag: It can protect the laptop from scratches and dust during use,but it only takes a second,once the case is turned off,it becomes a portable bag,{Bag Handle Design} convenient for working or playing anywhere.
Unique Four-elastic-rubber & Liner-pad Design: Four-elastic-rubber design can fixed the screen and keyboard,it can solve the problem of loose cover effectively in the process of using laptop;Liner-pad design can improve airflow at the bottom of the laptop,it can effectively solve the problem of heat dissipation.
High Quality Material & Fashion Design: Built from premium synthetic leather exterior and soft microfiber interior-snug fit and durable;handle and small bag design,fashionable and practical,being with excellent portable performance with special {small bag} and pocket for power adaptercordmousecashcard or some other accessories(This case not support "Tablet model").
All procedures are finished by hand-sewing,which can make sure for durable using in future. Our store have 2000+ laptop models cases,search more laptop models's case,please search "your laptop model".

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8.6

MAMA MOUTH

Laptop Case Cover Sleeve for Acer TravelMate B3 11 TMB311-34 TMB311-34T TMB311-34-C6MZ TMB311-34T-C9AJ with Portable Bag with Bag Handle,Black

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Main Highlights

It Specially Designed for Acer TravelMate B3 11 TMB311-34 TMB311-34T TMB311-34-C6MZ TMB311-34T-C9AJ 11.6 Inch Laptop,Only fit this laptop,Not fit Acer TravelMate B3 Spin 11 TMB311R-32/TravelMate B3 Spin 11 TMB311R-31{{Warning:Most of returned because of choosing wrong model,please confrim your laptop model}}
2 in 1 Design,Protective Case + Portable Bag: It can protect the laptop from scratches and dust during use,but it only takes a second,once the case is turned off,it becomes a portable bag,{Bag Handle Design} convenient for working or playing anywhere.
Unique Four-elastic-rubber & Liner-pad Design: Four-elastic-rubber design can fixed the screen and keyboard,it can solve the problem of loose cover effectively in the process of using laptop;Liner-pad design can improve airflow at the bottom of the laptop,it can effectively solve the problem of heat dissipation.
High Quality Material & Fashion Design: Built from premium synthetic leather exterior and soft microfiber interior-snug fit and durable;handle and small bag design,fashionable and practical,being with excellent portable performance with special {small bag} and pocket for power adaptercordmousecashcard or some other accessories(This case not support "Tablet model").
All procedures are finished by hand-sewing,which can make sure for durable using in future. Our store have 2000+ laptop models cases,search more laptop models's case,please search "your laptop model".

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8.3

Smatree

Smatree 13 inch Laptop Sleeve for 13.3 inch Acer Spin 3 SP313-51N-50R3 2-in-1, 11.6 inch Acer TravelMate B3 TMB311-32-C7GS, Acer Protective Laptop Case with Accessory Pocket, YKK Zipper (E437)

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Main Highlights

Model No.: E437; internal dimensions of the case: 32x23.2x2 cm (12.6x9.13x0.79 inch)
Innovative Shock Protection- Super Corner Technology: Our patented Super Corner design provides outstanding impact protection, safeguarding your laptop from accidental bumps and drops. This cutting-edge design eliminates the need for excessive padding, ensuring top-tier protection in a sleek, perfectly sized sleeve
Specially crafted for 13.3 inch Acer Spin 3 SP313-51N-50R3 2 in 1 Laptop; 11.6 inch Acer TravelMate B3 TMB311-32-C7GS Laptop; this sleeve offers a precise, tailored fit that keeps your device secure. Say goodbye to ill-fitting, oversized sleeves, and enjoy a perfect fit that enhances your laptops safety
Extensive Custom Sizes for Major Brands: Smatree offers nearly 20 custom-sized sleeve options specifically for Acer laptops, along with a wide selection for other popular brands such as Lenovo, ASUS, HP, MSI, Samsung, Microsoft, Apple, DELL, Razer and others. Our sleeves are meticulously designed to fit your exact laptop model, providing a superior alternative to generic cases
Multi-Functional and Water-Resistant: Constructed from durable 300D polyester, our sleeve is water-resistant, protecting your laptop from light spills and splashes. The detachable accessory bag keeps your cables, charger, mouse, USB drives, and other essentials organized, and the luggage strap allows for easy attachment to your suitcase, making it perfect for travel

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8.1

MAMA MOUTH

Laptop Case Cover Sleeve for Acer TravelMate B3 Spin 11 TMB311R-33 TMB311R-33-C9SN/TravelMate B3 11 TMB311-33 TMB311-33-P8UG with Portable Bag with Bag Handle,Red

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Main Highlights

It Specially Designed for Acer TravelMate B3 Spin 11 TMB311R-33 TMB311R-33-C9SN TMB311R-33-P1GS TMB311RN-33-C0JS /TravelMate B3 11 TMB311-33 TMB311-33-P8UG TMB311-33-C4SC TMB311-33-C3FM 11.6 Inch Laptop,Only fit this laptop,Not fit Acer TravelMate B3 Spin 11 TMB311R-32/TravelMate B3 Spin 11 TMB311R-31{{Warning:Most of returned because of choosing wrong model,please confrim your laptop model}}
2 in 1 Design,Protective Case + Portable Bag: It can protect the laptop from scratches and dust during use,but it only takes a second,once the case is turned off,it becomes a portable bag,{Bag Handle Design} convenient for working or playing anywhere.
Unique Four-elastic-rubber & Liner-pad Design: Four-elastic-rubber design can fixed the screen and keyboard,it can solve the problem of loose cover effectively in the process of using laptop;Liner-pad design can improve airflow at the bottom of the laptop,it can effectively solve the problem of heat dissipation.
High Quality Material & Fashion Design: Built from premium synthetic leather exterior and soft microfiber interior-snug fit and durable;handle and small bag design,fashionable and practical,being with excellent portable performance with special {small bag} and pocket for power adaptercordmousecashcard or some other accessories(This case not support "Tablet model").
All procedures are finished by hand-sewing,which can make sure for durable using in future. Our store have 2000+ laptop models cases,search more laptop models's case,please search "your laptop model".

Show Price

8.1

Lacdo

Lacdo Chromebook Case 11 Inch Laptop Sleeve for 11 Inch Acer HP Lenovo Dell Samsung ASUS Chromebook Spin 3 11, 13 inch New Surface Pro 11 Copilot+PC / 10 9 8 X, 11.6" MacBook Air Computer Bag, Gray

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Main Highlights

COMPATIBLE WITH: 11 inch MacBook Air | 13 inch Microsoft New Surface Pro 11th, Copilot+PC 2024 / 13 inch Surface Pro 10 9 8 X / 12.4" Surface Laptop Go 3 2 1 / 12.3" Surface Pro 7+ 7 6 5 4 3 2 1 | Lenovo Chromebook Flex 11 / IdeaPad 11 / Chromebook C330 C340 / Lenovo Thinkpad Yoga 11 | ASUS Laptop L210 / ASUS Chromebook 11 / Chromebook C223 C202 11" | Acer Chromebook Spin 311 / Acer Chromebook R 11 / Premium R11 | HP Chromebook 11 / Stream 11 / ProBook 11 | Samsung Chromebook Plus V2 2 3 4 Pro.
Sustainable Innovation: By giving new life to discarded textiles, the laptop sleeve utilize sustainable polyester fabrics, focus on less waste to envronments, authenticated by (GRS)-certified, boast superior quality and social responsibility. Protecting your laptop and keeping it in long-term use while guarantees durable material with social criteria and dedicated to our planet's preservation.
Anti-Static, Ultra-Soft Lining: Featured by anti-static barrier with microscopic static shielding effectiveness, the laptop sleeve liner serves as an insulator that effectively avoids the adverse effects of static electricity, gives your laptop a rest-assured protection when you put or take out it. Plus the high-density velvet, the sleeve lining can against physical shocks and scratches, offer a fusion of soft comfort and down-to-earth security.
Maximizing your Laptop Protection: Adopt anti-scratch luxurious velour padding and shock-absorbent, high resilience buffer layers, offer a super barrier against accidental bumps and jolts, the laptop sleeve provide a ton of hydrostatic resistance to repel water from penetrating inside, shield your stuff from unexpected coffee spill, equipped with unique two-way zippers in smooth action, reinforced all stress points, ensuring that your valuable electronics is always in encompassing protection.
Intelligently Arranged Storage: The sleek, functional laptop sleeve is meticulously designed to cater to the modern professional's storage needs. Custom-tailored compartment for laptop, front pockets that is organizationally divided to fit miscellaneous accessories such as power adapter chargers, cables, mouse, Airpod, and portable drives, ensuring both security and accessibility. Crafted with the planet in mind, this laptop bag blend practicality and social responsibility.

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Our Best Overall Choice

Best Choice

9.7

Smatree

Smatree Hard EVA Protective Sleeve Compatible for 12.2 inch Acer Chromebook Spin 312, 11.6 inch Acer Chromebook 311, TravelMate B3 TMB311-33-C3FM, TravelMate Spin B3 11 TMB311RN-33 2 in 1 Bag (X8019)

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Model No.: X8019: internal dimensions of the case:29.6x21.2x2.7 cm ( 11.7x8.3x1.1 inch )
Compatibility: designed to perfectly fit for 12.2 inch Acer Chromebook Spin 312- CP312-1HN-34Z7 Laptop; 11.6 inch Acer Chromebook 311 - CB311-12H-C5Y7 Laptop; 11.6 inch Acer TravelMate B3 TMB311-33-C3FM Laptop; 11.6 inch Acer TravelMate Spin B3 11 TMB311R-33-C04F/C0JS 2 in 1 Laptop
Anti-Shock: EVA hard sleeve and features internal upgraded shock resistant padding layer, protect your laptop from inadvertent collision and accidental scratches when put in backpack or suitcase
Waterproof: the Smatree sleeve is made of durable 1600d nylon, it obstructs water effectively. Don't worry about splashing water, washable when laptop sleeve case becomes dirty
Fashion Style: unique diamond pattern on the surface makes your case unique, personalize your laptop with its own unique style

Show Price

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