Military-Grade Protection: tomtoc first proposed the concept of 360 protection. Based on the patented CornerArmor technology and High resilience edges design, the bag has passed the Military-Standard-Drop-Test in Sep 2020, and also it's the first bag with this feature Quality Meets Performance: The premium spill-resistant recycled fabrics and YKK zippers meet the best standard for a MacBook sleeve. Internal Dimensions - 11.97" x 8.36" x 0.61"; Accessory kit dimensions: 8.86" x 5.12" x1.97" Military-Grade CornerArmor Protection New upgraded A13 Series now with 4 CornerArmors instead of 2. Increasing protection performance by more than 10 times than before, passing the Military drop-test Standard, providing enhanced shock protection from accidental drops and bumps. Offering Great Protection Simple and clean look made with wear-resistant & water-resistant recycled material on the outside, a thick plush lining and padding on the inside, offering great protection for your device for daily usage. Convenient Tech Kit Apart from the front zippered pocket, the sleeve also comes with an additional small pouch, lightweight and stylish, which is ideal for keeping your charger, cables, mouse, and other tech accessories safely sorted and neatly organized, right where you need them. Custom Made for Perfect Fit Laptop Sleeve Internal Dimensions - 11.97" x 8.36" x 0.61", Designed for 13-inch MacBook Air 2018-2021 (Model: M1/A2337, A2179, A1932) | 13" MacBook Pro 2016-2021 (Model: M1/A2338, A2251, A2289, A2159, A1989, A1706, A1708) | Dell XPS 13 | 12.9" iPad Pro (5th/4th/3rd Gen.) 2018-2021, etc. Accessory kit dimensions: 8.86" x 5.12" x1.97", perfectly holds chargers, cables, mouse, dongles, earbuds and more.