We designed our Ascend® Heavy-Duty Kayak Crate for versatility, easy use, ultimate durability, and unbeatable value. This kayak crate lets you haul heavy gear or attach accessories, and the stackable design multiplies efficiency. It's useful everywhere from on the water to sitting on at your destination or for countless applications at home and during projects. High-density plastic construction. Made in USA. High-density plastic construction; Designed for maximum versatility; Lets you haul heavier gear; Stackable;