Small in stature, big on features - the Ham Rock 12 is a compact, lightweight day pack designed for active outdoor sports. It's remarkably well equipped for such a small pack. With a main compartment, elasticated mesh side pockets, integrated rain cover, trekking pole lashing straps, plus a hydration system pouch and tube duct, the Ham Rock 12 gives you lots of different packing options. The packs in the Ham Rock series are equipped with the lightweight, flexible ACS Tight back system for a snug, secure carry. The air permeable mesh on the back keeps you cool and well ventilated.
This carrying system for hiking backpacks is characterised by permanent ventilation (ACS stands for Air Control System). The frame made of fibreglass and flexible plastic elements keeps the backpack at a constant distance from the back. This allows air to circulate continuously between the back and the bag, warm and humid air escapes laterally. The spacer also reduces the contact areas. The fact that these are covered with mesh material and the cushions are perforated also contributes to climate comfort.