The Nike Swim Poly Core Solids Brief Swimsuit gives you a secure, comfortable fit for every water workout. With a classic construction, this training suit provides exceptional performance throughout your swim.Fabric & Care Nike Performance Poly: 100% Polyester. Rinse after each use.Details Boy's training suit. Comfortable for long periods of use. Solid print.Sizing & Fit Brief style. Drawcord for a secure fit.