Trail running hydration pack

• This trail running hydration pack holds 8 litres and expands, staying tight and quiet at marathon pace, then opening out when a soaked jacket has to go in at the finish.
• The reflective front lash cord and tabs down both flanks put you back in a driver's headlights on an unlit road.
• Light rain runs off the water-repellent finish on the breathable nylon, while the mesh harness lets your back breathe on a long steady effort.
• The load-reducing straps are curved, spreading the weight along a shaped line over the shoulder rather than digging into one point late in a long run.
• A phone, keys and gels sit in the zipped lid pocket and side pockets instead of rolling about against the bladder.

Trail running hydration pack for two to four hour efforts

Two to four hours out is where eight litres earns its place, enough for a bladder, a shell and food, small enough to sit still at a steady pace. The pack holds the body close to your back and expands when you need it, with a zip pocket on the lid for a phone and gels. Early starts and late finishes often mean running in the dark, and the reflective cord and side tabs earn their keep on roads with no footpath. The mesh harness and the curved straps carry the weight along the shoulder rather than at one point, and the waist strap kills the bounce on a long descent. Ultralight nylon keeps the empty weight down, so what you feel on your back is the water you chose to carry.