XX-SMALL: Dimensions When Full: 8.2""W x 7.5""H x 15.6""L, Volume: 18 L, X-SMALL: Dimensions When Full: 8.7""W x 8.9""H x 17.6""L, Volume: 23L, SMALL: Dimensions When Full: 10.6""W x 10.1""H x 21.7""L, Volume: 40L, MEDIUM: Dimensions When Full: 12.1""W x 11.4""H x 24.6""L, Volume: 58L, LARGE: Dimensions When Full: 14.5""W x 14.1""H x 29.5""L, Volume: 101L, X-LARGE: Dimensions When Full: 16.5""W x 16.1""H x 33.5""L, Volume: 144L

Removable, padded, HeatGear shoulder strap easily stows away in side pocket, Padded top grab handle

Large front zippered organization pocket & molle webbing attachment points

Large vented pocket for laundry or shoes & internal slip pockets for organization

Tough, TPU-coated & foam-lined bottom & side panels for added durability & structure, Dual water bottle slip pocket