I use this when I bike 25+ miles on the trail. It has enough pockets to hold keys, phone, snacks and tools. As a woman I have a smaller frame so this 100oz bag is the perfect size without adding too much bulk. I have had it for almost 2 years now and with weekly use, the bladder and the pack material have stood up without any noticeable wear and tear. I would definitely recommend this bag for anyone who wants plenty of water, room for the essentials and durability.