Active Cold Weather GOAT: Arc'teryx Proton LT Hoody Review
The Proton LT features the Fortius™ Air 20 face fabric which is highly breathable. The Proton LT excels at keeping you warm during medium/high output activities in the cold. The Coreloft 80/60 used is very warm, making this jacket useful below freezing, any warmer and you'll be drenched!
Due to the nature of the breathability, this jacket is quite niche in its usage and is not recommended for urban/static use.
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