Polartec Thermal Pro Boa Fleecejacka

It’s been my daily layer for weeks now, and the way that high-loft fiber keeps me warm without any bulk is honestly impressive. The softness inside is a bonus—I forget I’m wearing something this insulating until I step outside into the cold.

Took this out in freezing weather expecting to layer, but the high-loft fiber trapped so much heat I actually unzipped it halfway. Featherlight on the shoulders, yet it blocks wind better than fleeces twice its weight.

I was skeptical a fleece could be this warm, but the high-loft fiber really does trap heat like a much heavier coat. It's light enough to wear comfortably indoors and still soft against my neck. Exactly what I needed for chilly mornings.