Description Breathable and quick drying Naked Exopower non-chafing, bounce resistant mesh Lightweight (5.8oz / 164g excluding accessories - size 6) Holds shape and compression when wet Holds multiple brands and sizes of hydration flasks in 100% usable space Carry phone, energy gels, fuel bars, sunglasses, headlamp, clothing and everything needed for your long outdoors adventure Nylon zipper with semi locking pull tab Rear pocket security clip Dedicated trekking pole carriers Reflective safety elements - (new and improved heat transfer logos) Internal micro clip Emergency whistle Drink tube lock points 8 liters of capacity* (size 6) Full gender specific range of 12 sizes Revised front pockets Reflective elements