Features include 3 external padded lined and zipped side pockets, 2 external pockets Velco flapped (1 with removable lining), 1 padded and lined top pocket, 2 adjustable top straps for sleeping bag etc, 4 internal pockets and an internal zipped security pocket plus large Velcro flapped rear pocket, fully padded back panel for carrying comfort with a capacity of 55ltr plus. Dimensions excluding external pockets 16.5" x 10.75" x 14.5"