I love this jacket for multiple reasons. It's super lightweight and kind of replaces the micro-puff for me. . . I have both the Ascendant Jacket and the Hooded Ascendant- but are great- but I do take the hood more times than no hood. . . it's just nice to flip up the hood in the wind or a drizzle without digging for a beanie. It's a great ski layer that compresses really well with higher breathability than a puffy, but it does provide impressive warmth. I wouldn't say it's water or wind PROOF... but it has water resistance and definite wind protection. I've used it for touring in bad weather multiple times and it's a GREAT touring layer. I have also notably washed and dried it many MANY times and it still looks/ feels/ performs the same... it's a sweet layer. The Ascendant collection is much warmer than you think, but they're breathable as well.