This Sanotan Heart of the Hide 1st base model features the Single Post double bar web, which gives it a stretchable web and forms a snug secure pocket which allows the ball to stick and not bounce. With its 12 1/2" pattern, this glove is designed only for the 1st base position. The Sanotan Heart of the Hide gloves are the perfect combination of weight and performance. Featuring a 15% average weight reduction, the Sanotan material comes from a Spanish tannery. The leather is titanium-based and chrome-free, making it hypoallergenic and non-irritating to the skin. The leather will keep your hand cooler and will dissipate perspiration faster than traditional leathers.