Eshow Sports 30L/40L Internal Frame Ultralight Waterproof Backpack for Outdoor Mountaineering Hiking Traveling Climbing Camping with Rain Cover Men Women &hellip; BREATHABLE STRAPS AND SUSPENDED NET FRAME BACK SYSTEM--With suspension system designed for maximum breathability, So the bag does not touch body directly; With special shock absorption straps, more comfortable and better buffer effect. CONVENIENT DESIGN--With hanging rings for hanging alpenstock, ice pick and so on. With elastic material pocket at both sides, durable and waterproof, easy for carrying water bottle and other items. You can hang sleeping bags, moisture-proof mats on lanyards at the bottom; There is a pocket at the bottom, you can carry your shoes. ENERGY-SAVING--Belt and waist can effectively transfer the weight to waist, reduce shoulder pressure, saving energy for hiking. DURABLE--With YKK zipper. Using 420D high-density nylon cloth, wearable and anti-tearing. Ultralight design, fits for traveling, Hiking,etc SECURITY GUARANTEE--The backpack can protect the body as a buffer when in an emergency situation.