Pearl Izumi Iso-Transition 2012 White/Lime: TRIATHLON RACE/TRAINING Designed and developed with 2x IronMan® World Champion Tim DeBoom, the new isoTransition was built to perform when it counts - on race day. The quick-pull lacing system and self-draining midsole are designed to help you shave valuable minutes for your next PR. The breathable, Seamless Upper provides such amazing out-of-the-box barefoot comfort, you’ll swear that someone is tickling your little piggies. Amen.