Westland Sharkskin Plus Boat Bimini Top 6L x 54H x 54-60W Escape from the sun with Westland bimini tops. This 3-Bow Bimini is made from Westlands Sharkskin Plus fabric and is available in a variety of colors. Westlands swivel mount technology allows you to mount your bimini top up to a 90 degree angle and complete control over your shade. For your comfort and convenience, Westland bimini tops can be kept open on your boat while traveling up to 45 mph. It is recommended that you close and store y