12.3 inch the big bag internal dimension is: 12 x 0.79 x 8.86 inch (L x W x H); external dimension is: 12.6 x 0.79 x 9.45 inch (L x W x H). The additional small pouch bag internal dimension is: 5.71 x 0.59 x 5.12 inch (L x W x H); external dimension is: 6.3 x 0.59 x 5.31 inch (L x W x H).

Features a neoprene foam padding layer and fluffy fleece fabric lining for bump and shock absorption and protection of your computer from accidental scratches.

13 inch the big bag internal dimension is: 12.4 x 0.79 x 8.86 inch (L x W x H); external dimension is: 12.99 x 0.79 x 9.45 inch (L x W x H). The additional small pouch bag internal dimension is: 5.71 x 0.59 x 5.12 inch (L x W x H); external dimension is: 6.3 x 0.59 x 5.31 inch (L x W x H).

Additional small storage pouch bag for you to storage laptop mouse and earphone. Same color as the big sleeve bag, harmony and stylish. This protective carrying sleeve case cover bag with small pouch is ideal for you to take your laptop out.

13.3 inch the big bag internal dimension is: 13.58 x 0.79 x 9.64 inch (L x W x H); external dimension is: 13.97 x 0.79 x 10.04 inch (L x W x H). The additional small pouch bag internal dimension is: 5.71 x 0.59 x 5.12 inch (L x W x H); external dimension is: 6.3 x 0.59 x 5.31 inch (L x W x H).

15 inch the big bag internal dimension is: 14.3 x 0.79 x 10.04 inch (L x W x H); external dimension is: 14.76 x 0.79 x 10.43 inch (L x W x H). The additional small pouch bag internal dimension is: 5.71 x 0.59 x 5.12 inch (L x W x H); external dimension is: 6.3 x 0.59 x 5.31 inch (L x W x H).

16 inch the big bag internal dimension is: 15.35 x 0.79 x 11.02 inch (L x W x H); external dimension is: 15.94 x 0.79 x 11.42 inch (L x W x H). The additional small pouch bag internal dimension is: 5.71 x 0.59 x 5.12 inch (L x W x H); external dimension is: 6.3 x 0.59 x 5.31 inch (L x W x H).

Features a neoprene foam padding layer and fluffy fleece fabric lining for bump and shock absorption and protection of your computer from accidental scratches.

Additional small storage pouch bag for you to storage laptop mouse and earphone. Same color as the big sleeve bag, harmony and stylish. This protective carrying sleeve case cover bag with small pouch is ideal for you to take your laptop out.

Slim and lightweight; does not bulk your laptop up and can easily slide into your briefcase, backpack or other bag. Top-loading zipper on the sleeve glides smoothly and allows convenient access to your laptop computer.

12.3 inch Compatible with MacBook Air 11 (A1370/A1465),compatible with MacBook 12 A1534; Compatible with Surface Pro 9/8/7/6/X/5/4/3/2/1 12.3; Compatible with Google Pixelbook 12.3; Compatible with Acer Chromebook R 11/Spin 11; Compatible with Asus Vivobook/Chromebook 11.6; Compatible with HP Stream 11/Chromebook x2 12.3; Compatible with Lenovo HD IPS/Yoga 300/Flex 11/130S 11.6/Chromebook C330; Compatible with Dell Chromebook 11,compatible with Inspiron 11.6; Compatible with Samsung Chromebook Plus 12.3.

13 inch Compatible with MacBook Air 13 inch with Retina Display Touch ID 2023 2022 2021 2020 2019 2018 (M2 A2681/M1 A2337/A2179/A1932), compatible with MacBook Pro 13 inch with/without Touch Bar 2023-2016 (M2 M1 A2338/A2289/A2251/A2159/A1989/A1706/A1708); Compatible with iPad Pro 12.9 inch (1st/2nd/3rd/4th/5th/6th Gen) 2015-2022; Compatible with Dell XPS/Latitude 13; Compatible with HP Pavilion 13; Compatible with Lenovo Yoga 13.3; Compatible with HUAWEI MateBook 13/X 13/X Pro 13.9.

13.3 inch Compatible with MacBook Pro 14 inch 2023-2021 M3 A2918 A2992 M2 A2779 M1 A2442 Pro Max with Touch ID, compatible with MacBook Air 13 inch A1369 A1466 2010-2017, compatible with MacBook Pro 13 inch A1425 A1502 A1278 2008-2015; Compatible with Surface Book 3/2/1 13.5, compatible with Surface Laptop 4/3/2/1 13.5; Compatible with Dell Latitude 14; Compatible with HP Elitebook 13.3/Spectre X360 13.3/Envy 13/Stream 13/Stream 14/Pavilion 14; compatible with Lenovo IdeaPad 13/14.

15 inch Compatible with MacBook Air 15 inch M2 A2941 2023, compatible with MacBook Pro 15 A1990 A1707; Compatible with Surface Laptop 5/4/3; Compatible with Dell XPS 15 2020-2023 /Vostro/Chromebook 14; Compatible with Acer Swift 7 / Switch 7 / Swift 5 / Spin 3 / Aspire One Cloudbook 14; Compatible with Lenovo ThinkPad X1 Yoga / X1 Carbon(1-4th Gen), compatible with Lenovo ThinkPad T-Series/E-Series/Ideapad/Flex/Yoga 14; Compatible with HP Probook/Pavilion/ZBook/SlateBook/EliteBook/Stream/Chromebook 14.

16 inch Compatible with MacBook Pro 16 inch 2023-2021 M3 A2991 M2 A2780 M1 A2485 Pro/Max Touch ID, compatible with MacBook Pro 16 A2141 2019 2020, compatible with MacBook Pro Retina 15.4 A1398; Compatible with Surface Book 3/2/1 15; Compatible with Asus ZenBook/VivoBook 15; Compatible with Acer Swift 3 14/Swift 5 15.6, compatible with Acer Aspire 3/5/7 15.6; Compatible with HP ProBook/Spectre x360/Envy x360 15.6; compatible with HP Omen/Pavilion x360 15.6; Compatible with Dell XPS/Vostro/Latitude 15.