Personalized Cowboy 1st Birthday Western Men's V-Neck T-Shirt. Cowboy 1st Birthday Men's V-Neck T-Shirt - White has number one wearing a cowboy hat with lasso and I'm One birthday quote. 4.7 oz., 100% pre-shrunk cotton Narrow, set-in 1x1 mitered V-neck collar Shoulder-to-shoulder taping Double-needle stitched sleeves and bottom hem