Hoofing three liters of water, plus food, extra layers, and your camera can be uncomfortable in a pack made for a lumberjack. The CamelBak Womens Trinity Hydration Pack lets you carry these things in compact, made-for-your-body fashion. The Trinity has a shorter torso length, curved harness straps, and a higher sternum strap compared to unisex packs. The angled design and sturdy waist-belt secure your load while the fleece-lined external pocket holds your shades. A three-liter reservoir keeps your water cool for hours and an antimicrobial element keeps unidentified stuff from growing on the inside walls.