Our most versatile performance short, the Mens Training Short is made in our Vento™ fabric—a silky-smooth, micro-perforated, four-way stretch material with a water-repellent finish for superior moisture management. The updated liner features four gel pockets at the lower back, two waterproof phone sleeves on each trunk side, and a front key pocket for total storage versatility. Bonded seams ensure a chafe-free experience, no matter the distance. New S25 colorway.s Training Short is made in our Vento™ fabric—a silky-smooth, micro-perforated, four-way stretch material with a water-repellent finish for superior moisture management. The updated liner features four gel pockets at the lower back, two waterproof phone sleeves on each trunk side, and a front key pocket for total storage versatility. Bonded seams ensure a chafe-free experience, no matter the distance. New S25 colorway.