NIKE SWIM Poly Color Surge Brief The Nike Men's Poly Color Surge Brief with durable polyester fabric offers a streamlined fit with excellent shape retention for long-lasting wearability. MORE BENEFITS -Stretch waist with interior draw cord for a snug, adjustable fit -Low rise fit for comfort -Engineered with Nike Performance Poly, a durable long-lasting performance polyester -Excellent shape retention Fabric 100% polyester (53% polyester / 47% pbt)