Waterproof And Lightweight For Moto The GPX 2.0 Trail WP off-road hydration pack offers a 2.0L bladder and 5L cargo capacity.This is our Design & Award-winning, fully-welded and waterproof hydration backpack.Our signature chest harness and shoulder adjuster system provide a solid non-bump fit without a waist belt, and one size fits all!AirLine back ventilation will keep you cool, and a reflective back panel will help maintain the temperature of the stored liquids, including a mobile phone pouch with touchscreen function.The CleanTech bladder has four-way tube routing - over the shoulder or under the arm/left or right.