Polartec Fabric:
- New fabric construction encases internal yarns, creating individual air pockets that capture body warmth.
- Surrounding knit casing also serves as a supporting barrier, preventing loose microfibers from shedding out into the environment.
- Power Air’s two distinct surfaces provide wider design versatility than most insulation to prevent pilling and promote easy layering with other materials.

Polartec Power Air Knit construction 
Warmth retention via encapsulated air
Microfiber shedding Reduction