The Cliff Keen Stretch-Fit design is comfortable across a wide range of sizes, yet looks just like a “fitted” cap. The secret is in the patented stretch-fit hatband. Dome crown construction offers a lower, more stylish profile with a pre-curved bill. Choose either wool or the breathable mesh. Size S-M fits 6-3/4 to 7-1/4; L-XL fits 7-3/8 to 7-3/4.