Internal dimensions: 12.00 x9.44 x 0.79 inches (L x W x H); External dimensions: 12.59 x 10.03 x 0.79 inches (L x W x H). The front vertical side pocket dimensions: 8.07 x 7.87 inches (L x W). The additional small pouch bag dimension: 7.08 x 4.52 x 1.57 inch (L x W x H). Made with square quilted polyester material, a top opening zipper gliding smoothly and allows convenient access to your device. Slim and lightweight, does not bulk your device up and can easily slide into your briefcase, backpack or other bag. Additional small storage pouch bag for you to storage tablet 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 tablet out. Features a polyester foam padding layer and fluffy fleece fabric lining for bump and shock absorption and protection of your device against bump, shock and accidental scratches. Compatible with 13 inch iPad Air M3 2025, 13 inch iPad Air M2 2024, 13 inch iPad Pro M4 2024, iPad Pro 12.9 M2/M1 2022/2021, iPad Pro 12.9 3rd / 4th Gen 2018-2020 with Magic Keyboard/Smart Keyboard Folio, iPad Pro 12.9 2st Gen 2017, iPad Pro 12.9 1st Gen 2015, Surface Pro X, Surface Laptop Go 12.4, Surface Pro 7/Surface Pro 6 12.3/Surface Pro 4/Surface Pro 3/Surface Pro LTE 12.3 inch, Galaxy Tab S9+ 12.4 2023, Galaxy Tab Pro S 12.2, Galaxy Tab S8+ 12.4, MateBook 12. Why should take this bag? This MOSISO square quilted vertical bag with pocket&small case offers a simple and yet fashionable way to protect your tablet while you are on the go.