What Our Gearhead(R) Experts Are Saying:"This pack is the perfect balance between size and functionality for all-day hikes. The breathable mesh back panel keeps me cool, and I love the hip belt pockets for keeping snacks and small essentials within reach. The hydration compatibility is a must for staying refreshed on the trail, and the included rain cover is a game-changer when the weather turns. With a durable, recycled nylon build, this pack is tough enough for rugged trails while staying comfortable for long days outside."When the trail calls for a full day of adventure, we count on the Patagonia Terravia 22L Pack to keep our essentials close and our comfort high. The highly breathable Regulator(R) airmesh back panel and shoulder straps prevent overheating, while the supportive hip belt ensures a secure fit as we navigate rocky terrain and steep ascents. With 22 liters of space, this pack offers just enough room for extra layers, snacks, and a hydration reservoir, while the external top and front pockets provide quick access to must-have items. The hip belt pockets are perfect for stashing small essentials on the move, and the included rain cover keeps our gear dry when unexpected weather rolls in. Built from rugged, 100% recycled nylon, the Terravia 22L is ready for long treks, high-mileage days, and everything in between.