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Decathlon - Trek 500, 50? Hiking Sleeping BagSee on Walmart
Optimal temperature : Comfort temperature 50°F, limit temperature 23°F. Synthetic fill.Easy to transport : In size L: weighs 2.1 lbs. Volume 7.9 Liters. Compression cover.Sleeping comfort : Very comfortable mummy shape. 2 x 3/4 zippers with 2-way slide to ventilate.Compatibility : Can be twinned with other models from the "Ultralight" 2017 & "light" 2018 rangeWater repellent : Water-repellent fabric to optimize the thermal performance of your sleeping bag.All our sleeping bags display the temperature ratings, tested by an independent laboratory (AITEX), in accordance with the European NF ISO 23537 standard (2017).The comfort temperature is the lower limit at which the user, in a relaxed pose, is in overall thermal equilibrium and feels neither too cold nor too hot (for a standard woman in normal conditions of use). Choose your sleeping bag accordingly.Limit temperature: temperature at which the user huddled up in the sleeping bag is generally in thermal equilibrium and feels neither too cold nor too hot (defined for a standard man and in normal conditions of use).We recommend you use an insulating mattress to optimize your thermal comfort.This sleeping bag is filled with synthetic fill to guarantee performance even in damp conditions.A sleeping bag does not produce heat but retains the heat produced by the body. If you are tired and cold and you slip inside a cold, damp sleeping bag, it is very likely that you will feel cold no matter how good your sleeping bag is! These temperatures therefore depend on the person's resistance to cold (bulk, fatigue, etc.), equipment (mattress with insulation, etc.), clothing (naked, underwear, etc.) and weather conditions (humidity, wind, etc.).Dress simply (1 layer of clothing is enough).Keep your head, hands and feet warm: use hats, gloves, socks, bed warmers, rubbing, etc.A flask filled with hot water can be used as a hot water bottle (if it can't open by accident !)Contract your muscles (70% of the energy consumed is transformed into heat). However you should do this without moving as this can cause drafts of cold air.Use a sleeping bag liner to maximize the heat inside your sleeping bag."Generous" mummy shape: wide at the shoulders and tighter around the feet to optimize thermal insulation (no loss of heat) and remain compact, while keeping relative freedom of movement.Width at the shoulders 27.6", height at the feet 12.6" in size L.Ergonomic hood with drawstring.2 side zippers with 2-way slides to open on the side. You can also manage cool air entry and ventilate your bag mechanically.... read more.