Game ready gloves tend to wear out quickly, but Mizuno uses cutting edge technology to give their MVP series gloves extra durability to go along with their ease in use. The secret is Bio Throwback Leather, which has a pebbled surface but is also soft and supple. The GXF57 MVP 13 inch first base mitt comes with a palm liner for extra protection for catching infield bullet throws on close plays; and it has a modified trapeze web to give you the very best chance to snag those impossible screaming liners over your head down the first base line. Also consider the Center Pocket Design, which provides a wider catch area while speeding up the breaking in time. This glove has an open back so your hand can breathe -which is conventional- but the Bio Throwback Leather is the selling feature that sets this glove apart from all the rest!