If it's a 5 mile or 10 mile rock depends on how far are you willing to carry it. The beauty when wearing the Patagonia Rockpile T-Shirt - Boys's is that if it is too big you've already got what you necessity screened on your shirt. The Rockpile, which is Built in 100% ringspun organic cotton, features original artwork and is printed by using PVC- and phthalate-free inks. Recyclable through the Common Threads Recycling Program.