Inspired by the Military who regularly dive in Arctic waters, the MK3 Sock is constructed of the following layers: Outer Nylon with heel stretch panels, Primaloft®, Inner Fleece.

• 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.