O'Neill Thermo-X L/S Crew Rashguard - Men's

Long Sleeve Crew Thermal Top

O'Neill's Thermo Long Sleeve Rashguard is a 8 oz Powerstretch P2
layering fabrics provide incredible insulation with low bulk and quick
dry properties. PolarTech Powerstretch with DWR coating provides maximum
insulation and water wicking properties.

This top is perfect to wear as a stand alone piece or layer under your wetsuit for added warmth. This top is basically a very thick rashguard.