Voted Best Ultralight Pack by Backpacker Magazine, the 2400 Windriders minimalist lightweight design includes everything you need and nothing you dont. A first choice for thru-hiking the Appalachian Trail, the Continental Divide Trail or the Pacific Crest Trail, Hyperlites flagship pack holds your food, sleeping system, clothes and everything else youll need for your lightweight or purist ultralight adventure. And its also the perfect size for weekend outings, casual adventures or leisure travel. Made from 100% waterproof Cuben Fiber, the Windrider is highly durable and weatherproof. Use this backpack with Hyperlites Cuben Fiber stuff sacks for a nearly perfect waterproof kit.