If you're on the lookout for a reliable, no-nonsense midweight baselayer for when you're out and about from the hiking trails to the pistes, then the Capilene midweight crew from Patagonia is a solid choice.
The Capilene is slim-fitting and very comfortable against the skin. We were a little wary of the almost shiny nature of the fabric to begin with, but it feels great when worn and makes sliding extra layers on top a breeze as there's no nasty pulling and things getting rucked up. There are also small thumb loops in the cuffs to make sure the sleeves sit flat and stay covering the back of the hands and wrists.
Comfort is pretty high on the list with this baselayer top, as it sports gussets under the arms to prevent chafing, as well as little touches such as a thin strip of fabric around the back of the neckline to be as soft as possible against the skin.
The fabric is constructed with a diamond-grid double knit pattern which is designed to trap heat as well as wick away moisture, and we have to say it works pretty well. You won't be kept as toasty warm as you would be if you choose a heavyweight thermal layer, but for most activities, this is all you'll need.
A small loop at the back of the neck for hooking around a hanger also comes in handy when storing and drying.
Overall we like the Capilene midweight crew a lot. Its thin, stretchy construction feels like a second skin if you get the fit right, and will serve you well when you're working up a sweat.