The winner of the Backpacker Magazine Editors' Choice Gold Award in 2017, the Sea to Summit Ultra-Sil Day Pack is great as a summit pack, carrying groceries when on foot, on a bike or as an extra traveling tote. The tiny packed size of this daypack fits easily onto your key ring, in a jacket pocket or a purse, and the reinforced bar-tacks at all stress points enable it to withstand loads 250 times its own weight. It's a small but mighty essential.