AquRa Kayak UV Resistant 4-Way Adjustable Comfort Seat Back with Zipper Back Pack Storage Bag fits for SIT-in Kayak Extra foam padding provides the comfort and support the four-way adjustability provides a custom fit for almost any body type It is made of durable, UV resistant nylon pack cloth? solid brass clips with stainless steel springs ,?easy to clip onto your kayak ****Please double check the size to confirm whether fit your kayak or canoe.