rstp62682wrote a review of Pearl Izumi Transfer Sleeveless Base Layer on October 31, 2012
Familiarity: I've used it several times
Just ran the Marine Corps Marathon with the PI Transfer under a short-sleeved shirt. Kept body temp well-regulated, especially considering Hurricane Sandy was blowing in that day and it got colder as the race wore on. No chafing either. Going to be a staple in my marathon kit from now on.