How rigid are these fins?
Trainfin swimming fins are semi-rigid fins.
The stiffer a blade is, the greater muscular exertion will be.
The more FLEXIBLE a blade is, the more efficient and sweeping the kick will be. Your muscular energy will generate the type of effort you’re looking for (cardiovascular or muscular effort).
Type of foot pocket:
Trainfin swimming fins are fins with a closed-foot pocket.
The type of foot pocket on a pair of fins determines how well the foot is supported during kicking (important for effective kicking).
Open foot pockets allow for greater freedom of movement for your ankles.
Closed foot pockets hold your feet in their natural position
How long are these fins?
Trainfin fins are long fins.
Sizes in detail:
- 30-31: 32 cm
- 32-33: 36 cm
- 34-35: 36 cm
- 36-37: 40 cm
- 38-39: 40 cm
- 40-41: 44 cm
- 42-43: 44 cm
- 44-45: 48 cm
- 46-47: 48 cm
Short blades guarantee a good kick frequency and a good cardio workout. Movements are very close to “natural” swimming movements.
The long blade guarantees a more sweeping kick and a stronger muscle workout.