Product DNA What's It Do? This is one of the lightest, most breathable shirts we make—and your new go-to. Any sport, any training, any time. The Fundamentals Loose: Fuller cut for complete comfort Incredibly soft, breathable fabric 4-way stretch construction moves better in every direction Material wicks sweat & dries really fast Dropped, shaped hem for enhanced coverage T-back straps with wordmark taping details 90% Polyester/10% Elastane