Choose size: 12 to 13.5ft for Sit-On’s within range and all Sit-In kayaks 12ft and longer. 14ft for all Sit-On Top Tandem Kayaks measuring 14 foot and longer. UPF 50+ UV-A/B 99% Block USA Tested, forward canopy material measure 49??, rear canopy measure 54?? long. Frame is height adjustable, lightweight and rigid that collapses and folds into compact carry bag for easy transport. All hub mounts and stainless steel screws included for easy installation, not recommended for inflatables. Dual configuration design allows the forward cover to be used as a stand alone shade allowing the rear to remain open. Kayak/Canoe NOT included.