Quickstep 21 Boom tent winter cover .The Kinder Industries winter cover is fabricated using Harbor Time Edge Marine Polyester. The cover install over the boom while the mast is stepped. The cover is fabricated with a 12″ drawcord skirt and uses 1″ webbing loops to fasten beneath the boats hull. The Cover is also tented using a jib or spinnaker halyard forward of the mast. The cover also includes an access door, large crush proof vents and storage bag. This cover is split at the mast and fabricated in 2 pieces. Also our cover is fabricated with fully finished collars and a superior skirt design. Made in the USA.