The Mares Nateeva Snorkelling Fins use a buckle-free heel adjustment and a flexible two-material blade. The soft open-heel pocket and textured sole make them a practical recreational fin for exploring at the surface.
Features and benefits
- Six strap positions: adjust the heel strap without a conventional buckle.
- Anatomical pocket: shaped to support the foot during a kick.
- Two-material blade: combines structure and flexibility.
- Spring-effect side ribs: help the blade return through the kicking cycle.
- Textured sole and transport connection: provide grip under the pocket and let the fins clip together for carrying.
Technical Specs
| Specification | Details |
|---|---|
| Brand/model | Mares Nateeva |
| Product code | 410513 |
| Fin style | Open heel |
| Adjustment | Buckle-free strap with six positions |
| Blade | Two materials with rubber side ribs |
| Sole | Textured rubber |
| Use | Recreational snorkelling |
Size and fit guide
| Size | EU shoe size | UK shoe size |
|---|---|---|
| S/M | 35–38 | 2.5–5 |
| M/L | 39–43 | 5.5–9 |
| L/XL | 44–47 | 9.5–12 |
Choose using the Nateeva size guide and test the pocket fit with your intended footwear. The shoe-size numbers are not foot-length measurements in centimetres.
View the model-specific fin size chart
To measure your feet, place paper against a wall, stand with your heel gently against the wall and mark your longest toe. Measure from the wall to the mark in centimetres. Repeat for the other foot and use the longer measurement. Where a model has no foot-length chart, contact us with that measurement and your usual shoe size rather than using another fin model’s chart.
Size charts are a guide only; individual fit varies with foot shape. Check both feet and try the fins with any socks you intend to use. The pocket should hold the foot securely without curled toes, pinching or excessive movement. If you are between sizes, ask our Hallam team for fitting help.
Care and storage
Rinse in fresh water after use and remove sand from the foot pockets and adjustments. Dry in the shade before storing away from heat and direct sunlight. Store blades flat without bending them or placing heavy items on top. Check straps and buckles before your next swim.

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