SealLine Discovery Kayak Back Rest Self-inflating: high-flow air valve makes adjustments easy Stable: low-slip polyester top keeps you secure in rough seas Reduce fatigue: provides customized support and relieves lower back fatigue while sea kayaking Ultimate paddling comfort: combine with the Sealline kayak seat and the Sealline kayak thigh support cushion to maximize your comfort Made in the USA of the finest US and global materials