Keep your toes warm and your feet cozy with the O'Neill Heat 3mm Socks. These socks are great for layering with booties or wearing under full foot fins to prevent chafing. Made with no sole or tread they will slide into booties or fins easily for an extra layer of insulation.

Product Highlights:

• Low Bulk Protection;
• Fluid Foam Neoprene;
• Flatlock seams.