This is a new, in stock, Jason Giambi signed Gray Throwback Unlicensed Custom Stitched Baseball Jersey with fully stitched twill numbers on the front and back, there are NO LICENSED TEAM LOGOS, TAGS, BRAND NAMES or PATCHES ON THIS JERSEY & IS NOT AN AUTHENTIC OFFICIALLY LICENSED JERSEY, 100% polyester, made in the Philippines. Size XL (48/50). Leaf Authentics Hologram and Certificate of Authenticity from Athlon Sports Collectibles.