Designed with the speed of the game in mind. We build our fielding gloves like we build our bats: with classic design and cutting-edge technology. The Pro Flare Series combines Louisville Slugger's iconic Flare design and big league patterns with professional-grade leather. The flare technology has up to 15% wider fielding surface vs. a traditional pattern giving you just the edge you need to take your game to the next level. 13 inch outfield pattern. Closed Back. Modified Trap Web. Professional-grade, oil infused leather. Combines unmatched durability with ultra quick break-in. Extra-wide lacing for added strength. Preferred by top professional and collegiate players-Professional-grade, oil infused leather.