Fourth Element - Tec Fin (MILITARY SPEC) Size:Medium Oxygen electrochemical sensors and battery

Oxygen electrochemical sensors and battery built-in analyzer carry limited warranty of 12 months

Warm neck collar keeps heat in and helps protect the latex neck seal

Key Features:

Hi-grade Silicone Hypoallergenic medical-grade silicone

delivering unmatched versatility for diverse tek configurations

Fourth Element - Tec Fin (MILITARY SPEC) Size:Medium Oxygen electrochemical sensors and batteryA classic vented fin, redesigned to maximise performance. Utilising natural rubber in a unique density gradient, this fin delivers a comfortable foot pocket combined with optimised stiffness for finning performance. The vented design allows water to flow along the blade reducing drag and fatigue, whilst the stiffening rails and ribs ensure that the blade of the fin is driven through the water to maximise the return on effort. The Tech Fins were