The ecoSensitive Trail 25 panel-loading daypack from REI is designed for comfort and easy access to your gear while on the trail. Largely made from 100 recycled PET polyester fabric, each pack keeps 19 16-oz. plastic bottles out of landfills Post-consumer recycled PET polyester is tough enough to endure the daily grind. Fully padded back panel features additional contact-point padding at scapula and lumbar region. Dual-density, foam-padded and sculpted shoulder straps feature an integrated safety whistle on the adjustable sternum strap. Main compartment holds the essentials and accommodates a hydration reservoir of your choice, with 2 exit ports so tube can be routed on either side. Front pocket features a key-keeper clip and an organizer for compass, lip balm, wallet, sunglasses and other small essentials. Side mesh pockets provide convenient storage and on-the-go access to water bottle, sunscreen, snacks or small electronics. Adjustable waistbelt lets you pull the load close to your back for increased balance and stability. Side compression straps let you cinch down loads for jostle-free carrying. Single ice axe loop stows away when not in use, tucking away into bottom slot with rip-and-stick closure.