We count on quick-drying, speedy tops for our triathlons, and with Castelli, that's the Free Tri 2 Sleeveless Top. It's comfortable on the run and keeps us cool in hot weather. Back mesh fabric offers maximum breathability, and two large rear pockets hold essential items. SnapLock fasteners clip onto Castelli shorts to prevent the top from riding up during our swim, and a full-length zipper gives us total control over ventilation.