Keep things tight. You know those midlayers that don't keep you warm because the fit is too loose? The Feel half-zip isn't one of them. Ergonomic seams and elastic inserts in the cuffs keep this midlayer close to your body. Meanwhile, its four-way stretch fabric, raglan sleeves, and absence of top shoulder seams raises the overall comfort sky high. There's a whole palette of tones to choose from too.