Fourlaps' most technical tee, the Level is engineered to perform in the toughest conditions. Runner’s World named it "The ultimate year-round running top," and it’s a great pick for any high-intensity workout where controlling your body temperature is key. The secret is 37.5® technology, which uses active particles to vent heat in warm conditions, and retain heat when it’s cold. One of Fourlaps' best sellers, the tech in this shirt is scientifically proven to help athletes perform up to 26% better.

FIT & FABRIC