Personalized Cute Axolotl St Patrick's Day Shamrock T-Shirt. Celebrate St. Patrick's Day with this adorable axolotl sporting a leprechaun hat and holding a lucky shamrock. This charming design brings the spirit of luck and joy to any T-Shirt - Red. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.