Ion Thermo Top Short Sleeve
Snug fit, stretchy, true to size.
ION Thermo Top - Short Sleeve
Made from cozy brushed polyester and elastan, the Thermo Top is perfect when it's just a little chilly in the water. Warmer than just a rash guard, but not as warm as a neoprene top or a wetsuit. You can even layer it under your wetsuit for extra warmth on the really cold days.