Norrøna Senja Warm1 Hood Women's is a lightweight, quick-drying mid layer designed for trail running and other outdoor activities.

The main material is a lightweight warm1 fleece fabric that is durable, quick-drying and warm. A lighter material is used on the back and under the arms for increased moisture transport. Both materials are treated with HeiQ Fresh FFL for odour control – a bio-based sugar polymer free from silver, which is not antimicrobial. It removes fat and protein from sweat, thereby eliminating the basis for bacterial growth and reducing odour.

The jumper has a technical fit with an anorak zip at the front and a fixed elastic hood with a close-fitting construction. Additional details include a zipped chest pocket, cuffs with thumb holes, flatlock seams that do not chafe, and reflective details.