Santa Claus Christmas Costume Long Sleeve T-Shirt. Ho Ho Ho! This Long Sleeve T-shirt will instantly transform you into a jolly old soul. This fun Christmas inspired design brings the spirit of the North Pole to your next office Christmas party or holiday gathering. Just add a Santa hat and voilą! Instant holiday spirit! Our Santa Claus Christmas Costume Long Sleeve T-Shirt is a funny, novel way to celebrate the holidays. Each Santa Claus design is printed on a bright red deluxe 100% cotton Long Sleeve T-shirt.