Notice: This sleeve will not suitable for 13.3 inch Ultrabook with protective case together Material Exterior---synthetic PU leather with well wear resistant. You will don"t worry about scratching or wearing out leather by accident Interior---Soft plush cloth, cleans your Ultrabook every time you slide it in or out Custom-Made Size: 325 mm x 240 mm x 19 mm; compatible with most 13.3 inches ultrabook, such as: Macbook Air Macbook Pro Retina Acer Aspire S3 13.3 Acer Aspire S5 13.3 Acer Aspire S7 13.3 Asus Zenbook Prime UX 13.3 HP spectre xt 13.3 Toshiba Z830, Z930 Dell XPS XPS13 Samsung series 9 NP900 Samsung series 5 NP530 Feathers Noble envelop design---Special envelop design, looks noble and charming. The EasyAcc special 13.3 inch sleeve can make your ultrabook different in the rest. Velcro closure---Strong Velcro closure makes sure the lid closed well to protect your ultrabook while in a backpack, handbag or briefcase with shake Easy slide out---Special opening design make it easy to slide out Durable protection---wear resistant high quality leather material protect your device against dirt, dust, small knock and scratches for ultra long time. Workmanship Minimalist but elegant appearance; neat fitted cut for exquisite workmanship; top grade PU leather , comfortable touch feeling, functional and convenient design. This is a double enjoyment for appearance and practicality