Manera 5'6" Surfboard Bag Bags are built in premium Polyester 600D , this is a choc, tearing, UV and water resistant material . It guarantees the best durability to our products. Polyester 600D YKK Zippers - We use heavy-duty 8mm YKK zippers to avoids any crack, corrosion, and allow a fluid run every time you open/close the bag.