"The Merino Blend 125 Cool-Lite Speed Motion AOP T-Shirt pairs an Active fit with an all-over Motion print for a bolder, movement-built cut. Eyelet mesh runs throughout for ventilation, while an underarm panel and forward side seams keep the fit close without restricting a hard stride. Front and back reflective details carry visibility into low-light runs, and flatlock seams keep friction away from the skin through repeated movement. What Our Gearhead® Experts Are Saying:""The Active fit gives me more room through the shoulders than a slim cut without feeling baggy mid-stride. I've caught headlights from both directions on early runs thanks to the front and back reflective placement."""