The Bolster Buddy is a versatile cushion that has a multitude of uses. Crafted from marine-grade, high-density foam and vinyl to resist mildew, the Bolster Buddy provides extra height for the boat driver or passengers, serves as a comfortable headrest while tanning, and adds extra back support while paddling kayaks or canoes. Plus, the portability of the Bolster Buddy makes it excellent for sporting events or hunting adventures. UV-stabilized materials stand up to the sun's exposure. Large cushion measures 16"W x 10"D x 8"H.