The Quechua Arpenaz 10l is a 10 litre day pack that is extremely lightweight (175g / 6oz) and water repellent. The bag has one large compartment and a smaller pouch on the front. It also has two loops on each strap that are listed as “thumb loops”. I think these could also be used for ice picks or hiking sticks. You could also use them for hanging extra gear with a carabiner. I found that the loops were quite handy for using as a makeshift sternum strap. You thread the loose ends of the straps through the loops and tie them together to hold them in place.
Olympus Mountaineering 