Octopus - Safety stopper schnorchel Use the C4 PROtech size

Use the C4 PROtech size guide and measure foot length plus circumference A and B

Frenzel-focused training instead of reinforcing Valsalva habits

C4 combines the blade and foot pocket into a connected performance system designed to reduce energy loss and improve force transfer from the foot into the carbon blade

Freedivers need snorkels for convenience when swimming at the surface

use this contact cement to repair stretchy

Octopus - Safety stopper schnorchel Use the C4 PROtech sizeOCTOPUS safety stopper Strong and reliable, enhances your safety as it efficiently prevents your lanyard from getting stuck. The almost flat upper part gives a clean stop to your carabiner, while the lower part, with its conical shape, allows your lanyard cable to be expelled towards the outside, with no grip to get it stuck. Following our prototype tests, we chose a diameter wider than a tennis balls (75mm vs 65mm). Finally, the bright fluorescent