Waterproof ripstop lining. Weasel proof padded laptop pouch with removable sleeve. Large main compartment opening for easy access. Two side pockets; one for waterbottle storage- another with padded pocket for MP3 players or other small electronics. Super strong shoulder straps with two loops for pouch attachment and an adjustable sliding chest strap for fine adjustment. 7 smaller internal pockets.Original 1000d Chicken Tex Supreme hyper performance accessory fabric.