Personalized Holiday Caching Long Sleeve T-Shirt. After 12 days John still hadn't located his geocaching holiday gift is a humorous gift design for your favorite geocacher. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL