Fintie ASUS Transformer Book T100 Chi Sleeve Case - Premium PU Leather Cover with Build-in Card Slot and Document Pocket for ASUS Transformer Book Chi 10.1-Inch Laptop Tablet, Brown Perfect fit for ASUS Transformer Book T100 Chi 10.1-Inch Tablet (2015 Release) Premium synthetic leather exterior and soft microfiber interior - Snug fit, lightweight and protective. Magnet secures the closure, keep your precious device securely inside without dropping out. Card slot to keep business cards or your credit cards. Built-in large pocket for documents, Smartphone and small devices. Slim and lightweight to take alone, or slide it into your briefcase, backpack or any other bag when you go to school, work or travel.