Ski bums have been known to graze french fries off abandoned cafeteria trays. Which is why they’ll love the Trash Pack, which is made of scrap fabric from sails. It’s compact enough to wear on a lift but, at 36 liters, roomy enough for a daylong tour. The indestructible rubberlike exterior and metal frame can handle the bulk of any big-mountain ski. [$120; flylowgear.com]