San Tokra Outdoor Travel Waterproof Nylon Backpack Large Capacity Hiking Backpack Material:High Quality Waterproof Nylon Fabric Size: 13" length * 8.3" width * 20.5" height The front zipper pocket, conveniently placed small items. The adjustable thickened widened shoulder strap, carrying more comfortable way. Hook system design, can hang water bottles or alpenstock etc.