Thermocline Fin Sock

Thermocline Fin Sock – Neoprene-Free Thermal Fin Socks for Diving Comfort

The Thermocline Fin Sock from Fourth Element is a neoprene-free thermal sock designed to provide added warmth, comfort, and protection when wearing open-heel fins in warm to temperate water conditions. Lightweight and low bulk, this fin sock helps reduce heat loss and friction while maintaining a secure, comfortable fit inside your fins.

• Neoprene-Free Thermal Insulation – Provides warmth without buoyancy changes or compression.
• Fin-Optimized Design – Designed to fit comfortably inside open-heel fins.
• Low-Bulk Comfort Fit – Reduces pressure points and friction during extended dives.
• Quick-Drying Performance Fabric – Comfortable for repetitive dives and surface intervals.
• Ideal for Travel and Warm Water Diving – Lightweight and easy to pack for dive trips.