For any adventure you will ever find yourself in, Platypus Hyrdation packs come in three different ranges to get you through them: the Tokul Cross Country Series, the Duthie All Mountain Series, and the Sprinter Cross Trail Series. Tokul XC Series is perfect for when all you need is hydration, food, and maybe an extra pair of socks. It meets the demands of minimalist riders looking for a lightweight solution to carry just the essentials. Available in 3L-8L capacities. Duthie AM Series is everything you’ll ever need for a full day on the trails. It features added internal storage for big days, plus external carry options for when you’re living on the edge with body armor and full-face helmets. Available in 12L and 17L capacities. Sprinter XT Series is when you start to have options. This series delivers the essential weatherproof protection, comfort and technical features you need for a full day of just about anything – helmets, trekking poles, ice axe, mattress pad, you name it. Available in 25L and 35L capacities.