This is what the players wore in the 2011 Season. Authentic San Francisco Giants jerseys are made by Majestic in the USA.
They include the Championship Patch that the players will wear in the 2011 season.
Authentic MLB jerseys are athletic cut. Bigger in chest, smaller in waist. A size 40 is like a medium, 44 large, 48 XL, 52 2X, 56 big 2X, 60 3X. When in doubt go up a size.