Insulating hydration tubes effectively against sub-zero wind chill
Insulating Hydration Tubes Effectively Against Sub-Zero Wind Chill The first time I watched a hydration tube freeze solid mid-expedition, we were four hours into a winter traverse in the Winds at -22°F with a 30 mph crosswind — and the client’s CamelBak was completely blocked within 45 minutes of leaving camp. I’ve led cold-weather expeditions … Read more