Design and Details Waterproof roll top buckle closure Front panel water resistant zip pocket Internal zip mesh pocket with key clip Reflective graphics Blinky light attachment Airscape backpanel Spacermesh back, mesh covered die-cut foam, adjustable sternum strap Removable web belt Main: Bluesign approved 400D recycled nylon, TPU double coated Bottom: Bluesign approved 400D recycled nylon, TPU double coated