Stahls Thermofilm is the #1 choice for the sports decoration Industry.  

Thermofilm is tough, durable, extremely vibrant and opaque and nearly bulletproof. This video covers a lot of technical information but gives a good idea of how the process of our gaments are decorated. Nice clean and will block most colors from bleeding through. Semi-soft and semi-gloss finish it provides the best in performance. Guaranteed for Durability.