The Polartec Power Stretch material is intended for use as a very warm mid-layer for frigid days and provides maximum core warmth for complete mobility and minimal bulk. The Arc’teryx Atom LT Hoody is a lightweight, wind resistant shell with mechanical stretch and a durable water repellent coating for extra protection from the elements. 60g Coreloft Insulation offers a lightweight and thermally efficient polyester insulation that breathes well, is very compressible and has excellent loft retention. The Arc’teryx Atom LT Hoody features gusseted underarms, articulated elbows, and an insulated hood that easily fits under a bike helmet.

Trim fit with stretch mobility maximizes heat retention and allows the Atom LT hoody to be worn solo or as a layer.

It’s hard to deny a lightweight and breathable insulated shell. Add in dual handwarmer pockets, one internal pocket, and full front zip with an insulated wind flap and it just doesn’t get much better.