65%Polyamide, 35% Elastane Imported Experience the phenomenal difference of the first ever FINA-approved racing jammer for men made with recycled fabrics: lighter, more durable and faster Focused on sustainibility: over 60% of this sustainable fabric is made of recycled yarns; Please be advised, this jammer suit for racing is designed for a tight, compressive fit The jammer is significantly lighter which results in less water absorption and drag while the specific characteristics of the new fabric provide a longer-lasting compression and, consequently, greater durability The ergonomic construction with low profile seams ensures perfect fit and excellent freedom of movement Greater support and compression for increased power and a streamlined position in the water; World Aquatics (FINA) approved