Surfer Garret McNamara recently sported his DonJoy Defiance Knee Brace during a photo he provided for Outsize Magazine. Recently, McNamara was heralded for riding a 90-foot wave, breaking the previous record of 77-feet.

The DonJoy Defiance is a custom knee brace, and is widely recognized as one of the best knee braces in the world. As a professional surfer, McNamara understands the importance of wearing a knee brace while riding the waves, in order to protect his knee against ligament tears. Knee injuries can be quite common during surfing, especially because the board may shift one way with the force of a wave, while the body goes in another direction.

View the article to see the photo and to check out what Garrett McNamara listens to as he surfs.