Personalized Hiking Makes Me Happy Mountain Hiker Long Sleeve T-Shirt. Cute hiking makes me happy Long Sleeve T-Shirt - Purple outfit for anyone hiker who enjoys the mountains and the outdoors. 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