The MAAP Team Mesh Sleeveless Base Layer is a sleeveless cycling base layer for hot rides, knit from ultra-light circular mesh that moves air across the skin. It dries quickly once the effort drops, so a damp layer isn't left against the skin after a climb. What Our Gearhead(R) Experts Are Saying:"On a long hot ride I stop noticing this base layer, because the flatlock seams lie flat against my skin and nothing rubs, even after hours of sweat. That is why I reach for it on summer days when chafing would otherwise end the ride early."