Take Mountainsmiths signature lumbar pack with you on the trail. The Epic Lumbar Pack stays stable as you hike or run, plus it has a one-liter reservoir with a hose so you stay hydrated. Mountainsmith gave the Epic its Air Flow back suspension, which means the only thing against your back is porous mesh. Plus, there is space for air to flow between this mesh and your packyou wont get all sweaty underneath the Epic. Compression straps lets you cinch down this lumbar pack so it wont bounce as you hike, and its baffled reservoir doesnt allow your water to slosh around. A mesh flap pocket holds your energy bar, and a mesh sleeve holds your energy gel. A padded sleeve protects your MP3 player, so you can jam out on the trail.