For day hikes and breezy adventures, the Camelbak Cloud Walker 18 is a clean and classic hydration daypack. An adjustable fit keeps you focused on the trail, not your pack. Lightweight, versatile, and organized, the Cloud Walker 18 is perfect for hiking or hauling gear around town. Breathable air mesh back panel for lightweight comfort and air flow Cargo compression keeps gear close to the body for better balance & stability Removeable sternum strap offers a range of adjustments for a custom fit Essentials pockets keeps small items organized and secure Side stretch pocket expands for extra water bottle or essentials Secure zippered pocket keeps essentials safe & easy to access Stretch overflow pocket quickly stashes an extra layer Tube trap keeps the tube secure and accessible when needed Made with sustainable and ultra light materials Partially made with post-consumer recycled materials Lifetime manufacturer warranty against defects in materials or workmanship