Lizzard - Trek Hydration BackpackThe Lizzard Trek Hydration backpack is the ultimate bag for extreme action endurance sports where hydration is all important. Not only is it lightweight and compact but it also packs a punch and can hold up to 2 x 3L bladder plus your kit or a 4. 5L bladder and kit, ensuring enough space for required gear and liquid to perform optimally. A harness style shoulder strap limits movement towards the upper body when inverted, making this bag ideal for