?Lightweight and Durable Backcountry Pack. Conquer the backcountry with the Patagonia Snowdrifter 20L Backpack. The Snowdrifter 20L is constructed with 100% recycled nylon with a TPU coating, providing superior durability and weather resistance. The ergonomic shoulder straps, back panel, and hip belt provide a comfortable and secure fit, distributing weight evenly for prolonged comfort. The pack has ample storage and organization for all your essentials, including a front stash pocket and a dedicated avy tool compartment.