The backpack is with its 7l. absolutely sufficient for him like a daypack or to swim to nemen with. The carrying system is simply brilliant, you can throw it quickly over his shoulder or waist belt strap with the slides and then wobbles nothing, not even running at. It is suitable as a daypack for weight minimalists, the outside of the backpack is a soft or hard shell jacket off the shoulder strap is a mobile phone compartment plus a separate compartment for cash, knife, compass, handkerchiefs, etc .. In the interior, for example, 2l of water and a few snacks for physical well-being are mitgenamen. So you can make a relaxed day trip with about 3.5 kilos loose. And the best part is, you do not even need to be abnemen rauszuholen what, solve waist belt and rotate it forward. The workmanship is as usual of Patagonia perfectly he is very robust and can handle a prolonged downpour.