Deuter Updays 20

"The Updays 20 from Deuter is the ideal companion for anyone who is out and about in the mountainsu2013 be it skiing, ski touring, freeskiing, snowshoeing, mountaineering, climbing or hikingu2013. With a volume of 20 liters, this backpack offers enough space for your equipment and is still a real lightweight at just 670 grams. The backpack impresses with its ergonomically shaped and well-ventilated shoulder straps and hip fins, which ensure a comfortable fit, whether uphill or downhill."
"The detachable diagonal skiquick-release fastening is particularly practical, allowing quick and easy handling. The adjustable chest straps with signal whistle offer additional safety and comfort. An integrated and removable helmet net as well as a safety compartment for shovel and safety equipment make the backpack particularly versatile."
"The well thought-out design also includes a zippered front compartment with key clip and an attachment for a hydration bladder up to 3.0 liters. The Updays 20 is therefore perfectly equipped to provide you with optimum support on your outdooradventures, while the SOSlabel with emergency numbers offers additional safety."