CamelBak's Helena 22 fits like a dream. S-curved shoulder straps and a short torso make this women's-specific pack comfortable for all day adventures, and it's versatile enough for riding, hiking, and jaunts through the city. It'll haul trekking poles and it even has a sealed media pocket and a lined pocket for your shades. Its contoured harness offers excellent stability and its ventilated back panel is comfortable for hours on end. And, the wide-mouth 100-ounce Antidote reservoir is durable and easy to fill and clean.