DESIGN & DETAILS: Evenly distributes load across entire back for comfortable carrying Mesh behind back is formed into foam ridges that ventilate where the body meets the bag, aiding comfort by letting air into a spot where heat often rises Comfortable foam straps made from EVA foam cushion shoulders and have flexibility Compression straps along sides keep stuffed bag contained to zippable region, and feature a quick-release buckle to lock in compressed backpack size Trekking pole loops allow easy carrying of all materials, keeping bag interior available for other belongings Blinking light attachment slot offers safety and eyesight Side water bottle pockets stretch to hold water Adjustable sternum strap and rescue whistle attached Main body made from recycled material, and GRS-certified PFC/PFAS-free DWR material eliminates fabric with unhealthy exposure to chemicals Bluesign® approved main body fabrics for environmental and worker safety