The Arcteryx Proton LT Jacket is a lightweight highly breathable insulating softshell, ideal as a mid layer when doing aerobic activities in cold conditions. Keeping you warm is Coreloft Continuous 65 insulation throughout the jacket, which has an excellent warmth to weight ratio as well as maintaining excellent insulating properties when damp. The Fortius Air 40 outer fabric has a DWR coating to provide weather protection whilst remaining highly breathable to prevent overheating when you're working hard.
It has a trim fit making it ideal as mid layer, but it could also be used as an outer layer in warmer weather. The No Slip Zip™ is an Arcteryx feature which works like a series of speed bumps down the zip so the zip doesn't slip from the position you put it in, even when not fully zipped up. There are also two hand and one chest pockets, as well as dual hem adjusters to keep the warmth in.
The Arcteryx Proton LT Jacket is perfect for a variety of activities be it alpine, ice or rock as it delivers all day comfort across a wide range of conditions that the mountains may throw at you.
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