Lightweight Frameless Daypack: Perfect for single-day adventures with no compromises on functionality. Adjustable Comfort: Vest-style straps reduce shoulder strain, with an optional hip belt* for added support. Durable and Eco-Friendly: Made with abrasion-resistant, weatherproof Terra Shell™ fabric; 100% recycled, Bluesign approved, and PFAS-free. Optional Rain Fly*: Full waterproof protection for extreme weather. 5L Expandable Roll-Top: Ultra Cinch™ roll-top for fast, one-handed access and additional capacity. Rear Access Panel: Simplifies packing and carrying camera gear, compatible with Peak Design Camera Cubes*. 3 External Flex Pockets™: Quick access to essentials like water bottles, jackets, or tripods while maintaining a clean look. Customizable Carry: Includes Cord Hooks™, Gear Loops, and Cord Rails™ for versatile external attachments. Compatible with Peak Design Packing Tools*: Tailor your setup for any gear combination. Eco-Friendly Construction: Fair Trade Certified and 100% carbon neutral. Capacity: Roll-top down: 20LRoll-top extended: 25L External Dimensions: Roll-top down: 48.5cm x 28cm x 15cm (19.09" x 11.02" x 5.91") Roll-top extended: 66cm x 28cm x 15cm (25.98" x 11.02" x 5.91") Internal Dimensions: Roll-top down: 48cm x 27.5cm x 14.5cm (18.90" x 10.83" x 5.71") Roll-top extended: 65.5cm x 27.5cm x 14.5cm (25.79" x 10.83" x 5.71") Hydration/Laptop Carry: 1x internal hydtration sleeve 1x external hydration sleeve (center Flex Pocket™) Internal sleeve fits up to 16" MacBook Pro Weight: Without hip belt: 1.55kgs (3.42 lbs) With hip belt: 1.8kgs (3.97 lbs) No two outdoor trips are the same—your gear, environment, and needs are always changing—and the Peak Design Outdoor Backpack 25L is a lightweight, frameless daypack designed to handle it all without forcing you to make sacrifices.