You'll spot the Nike Men's Dri-FIT ADV Aeroswift Singlet on race day for a reason. Lightweight and silky smooth, it's built for fast efforts with a streamlined feel that stays comfortable from the first stride to the finish. The fit stays close without feeling restrictive, while thoughtful coverage lets you focus on your race, not your gear. Dri-FIT ADV fabric helps manage sweat, and strategic perforations keep air flowing when things heat up. Bonded seams and an updated lower hem round it out with a smooth, stay-put feel built for race day.