Be the first to purchase official World Gliding Championship merchandise. The SSA is selling WGC merchandise, and a percentage from each sale will go to Uvalde, Texas to help support the Championships. The skies over the Lone Star State will soon be filled with the best soaring pilots from around the world. This Commemorative button is destined to be a collectible. Button is 2.25 inches in diameter. Order yours today and a few extra for your friends.