THERE ARE TWO IMPORTANT CRITERIA TO REMEMBER
Foot pocket: part of the fin designed for fitting your foot. The swim fin's foot pocket will ensure foot support when kicking. For effective leg kick, support is essential. It is therefore essential to take time to try on fins before buying them!
When trying on fins, you must also check foot fit inside foot pocket and that as little as possible of the foot remains uncovered to prevent water entry.
Our advice: prefer a shoe size above your usual size because your foot can swell during physical exercise.
The blade: it's the part of the fin that is an extension of the foot pocket.
Short: it ensures good kicking frequency and makes aerobic workout more demanding. The movement is very close to the "natural" movement and helps to focus effort on core stability and doing a abs-glutes workout. The Nabaiji Silifins are perfectly suited to this use!
Long: it ensures greater physical effort and a more intense glide feel during use. An amplified kicking movement will then be felt. It requires muscular strength and generates full leg workout. Nabaiji trainifins are therefore more suitable.