Kimlee Internal Frame Hiking Daypack Trekking Backpack Riding Backpack with Helmet Attachment Blue Item Dimensions 13.8*19.7*13.8 inches;Item Weight:2.2pounds;Capacity: 25L/1525 cubic in Lightweight 3D air system padded and adjustable shoulder straps reduce your shoulder's pressure and make you feel comfortable. Stress points are reinforced with bar tacking for increased longevity and Durable Abrasion Resistant SBS Metal Zipper across the backpack Built-in interlayer for water bladders and hose fixed orifice to make you drinking more conveniently Trekking backpack perfect for women and men backpacker