I initially was worried about sizing, so I decided to size up (M) and I am very glad I did. It doesn't fit too loose but it's just big enough to wear a t-shirt underneath. I love the weight of the shirt, it makes for a good go-to when the weather turns slightly breezy but it still breaths well. The hood is a nice touch and fits well with or without a hat. I really love the cuffed sleeves. I would like to see this in a lighter weighted option (more of a sun shirt-like the wick hoody in men's) for sun protection and breathability on those hot summer days.

I LOVE this layer. I am 5'6"" and around 125lbs and the medium fits me perfectly. It's snug and keeps in place, but not overly so. This layer is crucial to my gear. I wear this as my base layer in the winter and it always wicks my sweat and keeps me warm and dry. I also wear this as my only layer in fall and spring, and love its wicking properties as I am moving and sweating. 10/10 base layer that is sturdy and has held up great to 1 year of constant use.

I'm just not a thumbhole person. I wish this had thumbholes like the furnace hoodie, where there's not just a hole in the sleeve. That's the best of both worlds as it still allows for thumbholes while not having an obvious hole in the sleeve if you don't want to use it. Outside of this the fabric and fit are fantastic.

Fits wife well and she likes the warmth

Warm, light and scent free. Perfect