Backpack with AIR HOLES 100 BACK SYSTEM. It is equipped with shaped, adjustable shoulder straps, adjustable chest strap with whistle buckle, adjustable waist belt and breathable lumbar cushions. The lumbar pockets are capacious, The backpack is equipped with double pocket on hood one of them is dedicated to first aid kit (not included) and is provided with an S.O.S. printing. The backpack bottom is equipped with wide access with zip and buckle closure. On the frontal side there are functional attachment points and tool loops, ideal for kit 3 and kit 4.  The frontal elasticated pocket is useful for wet objects, that can be fixed outside thanks by the pocket closure system. On the side there are 2 elasticated pockets for water bottles, 2 poles loops and 2 compression straps. On the bottom is equipped with 2 straps, ideal for carry bulky tools. Hydration system compatible, raincover included on the bottom.