A backpack such as this one can be very useful for a number of things. The material of choice for this bag is polyester and it holds 25 litres.
From Muziker
Fjällräven Abisko Hike Foldsack Terracotta Brown UNI Outdoor Backpack
Scandinavian Outdoor Store
Fjällräven Abisko Hike Foldsack
This product is also available at 1 unverified store.