What's it do? These are the perfect warm-ups. They are light but trap heat to keep your muscles ready, and they're super-comfortable. Product DNA - It's French Terry you can actually work out in—same comfort, but stretchier, lighter & faster - Material wicks sweat & dries really fast - Secure, zip hand pockets - Binding at cuffs & bottom hem - Loose: Fuller cut for complete comfort. - Style #: 1383272 - 100% Polyester - Imported