Boston Whaler 230 Dauntless w/ Single Engine Center Console T-Top Boat Cover 2000-2018 Ultima FabricTaylor Made Custom Boat Covers are design to fit a specific model of boat. The Ultima fabric is lightweight and has a three year warranty. This cover should hold up to UV rays an estimated 4-5 years. Available in two colors. 9 oz Solution Dyed Polyester Strongest material offered for T-Tops Best Choice for high wind conditions 5 Year Warranty Made in the USA