The Peak Design Outdoor Backpack 25L is built for single-day adventures where versatility matters. Its lightweight, frameless design keeps weight down while the modular Packing Tools ecosystem lets you configure it for trail snacks and clothing or a full camera setup. The Ultra Cinch roll-top opens with one hand and expands to 30L when you need extra capacity. A low-profile, hyper-adjustable harness distributes weight across the torso, and vest-style shoulder straps include quick-access storage and Capture Camera Clip attachment points. Weatherproof Terra Shell fabric with an integrated external carry system rounds out a pack equally at home on trail or in a city.