The first commercially available base layer made from polypropylene, released in 1970 by . It had a lining that wicked moisture away from the body, while its outer face aided evaporation. The Lifa freed outdoorsmen from wool, ushering in the .
(Photo: Courtesy of Helly Hansen)
New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! .
From ϳԹ Magazine, August 2015
Lead Photo: Courtesy of Helly Hansen