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which will optimise efficiency later on in performances with longer blades
low internal volume and a soft
stiffness and foot pocket size matter more
It is compact
Complete your equalization training
Double K - Equal Vent - Equalization Trainer freediving equipment which will optimise efficiency laterDouble K Equal Vent PRE ORDER NOW! (delivery ~ end. August) The Double K Equal Vent is a compact equalization training tool for freedivers who want to practise pressure equalization outside the water. It is especially useful for divers working on Frenzel equalization, tongue control and dry equalization awareness. Equalization is one of the most common limiting factors in freediving. Many problems are not caused by depth itself, but by tension, poor
