Synergy Swim Cap - Neoprene Swim Hood PROVEN TECHNOLOGY EQUALS SUPERIOR PERFORMANCE - Snug fitting hood provides excellent heat retention and insulation. EXCEPTIONAL FUNCTIONALITY - Each hood covers the ears and head from brow to neck, and has a very comfortable and soft neoprene chin strap. FIRST RATE MATERIAL - 2 mm Yamamoto SCS Smoothskin Neoprene. SUITABLE FOR MANY SPORTS ACTIVITIES - Enjoyed by swimmers, divers, surfers and triathletes worldwide. CUSTOMER SATISFACTION - 30-Day Guarantee: If you are not 100% satisfied within 30-days, send it back for a full refund.