The high bidder wins a $100 gift card to be used for merchandise at REI stores, REI.com, or (800) 426-4840. 

A little background about REI:

"We believe that it’s in the wild, untamed and natural places that we find our best selves, so our purpose is to awaken a lifelong love of the outdoors, for all.

Since 1938, we have been your local outdoor co-op, working to help you experience the transformational power of nature. We bring you top-quality gear and apparel, expert advice, rental equipment, inspiring stories of life outside and outdoor experiences to enjoy alone or share with your friends and family.

"...We believe a life outdoors is a life well-lived!"

 https://www.rei.com