* Breathable, moisture wicking, high loft, insulating polypropylene Polar Fleece inner lining.
* StormProof 70 denier micro-ripstop water-resistant Taslon outer nylon facing.
* Primaloft® sandwiched between fleece lining and nylon facing - Primaloft® is as warm as down, compressible, breathable and offers superior water repellency.
* Complement this with the MK2 Undergarments, or layer with the MK1 undergarments for colder conditions.
* Sock can be worn alone or with a very light moisture wicking sock to minimize laundering.