Designed for the new version of Alienware(R) 17.3" notebooks; Durable high-density nylon exterior & weather-resistant nonslip base; Reinforced, weather-resistant, nonslip base protects against the elements; Dedicated padded notebook & tablet compartments; Padded shoulder & chest straps for comfort & support; Additional compartments & pockets for accessories & gear; Hidden, extendable mesh water bottle compartment; Dim: 22.5"H x 15.5"W x 7.12"D; Lifetime warranty;