Castelli Men's Triathlon Collection - Castelli has in a very short period of time, changed the way triathletes dress forever. Before Castelli came along Tri Suits all had one thing in common - they where all sleeveless. Castelli's background in performance cycling attire recognised this as a fundamental flaw, and introduced the Triathlon world to sleeves. Also carried over from road cycling was the SanRemo concept of fully openable skin suits. Of course for Short distance and ITU events Castelli have a sleeveless suit to appease the blazer wearing pen pushers, but even then an upgrade to the T1 Stealth top for the cycle leg will save 6 min, over a sleeveless design (based on Ironman Distance equivalent watt saving at 25mph) Buy your Castelli Triathlon Apparel from Castelli Cafe - all orders over £50 sent with FREE Express Delivery. Castelli Triathletes you know you're getting an unfair advantage.