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ION Water

ION Waist Windsurf Radium

2.499,00 kr
Color: 900 black
Size
SKU: 9010583223797  |  Barcode: 9010583223797

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ION Water

ION Waist Windsurf Radium

Description

ION Radium is a waist harness for windsurfers who demand top performance and comfort without compromising mobility. It's ION's most popular windsurf harness and is used by pros such as Víctor Fernández. It's designed for intermediate and experienced surfers who need a versatile, high-performance harness for speed, waves, and freeride.

At the center is the new Spectre Bar 2 with a windsurf hook, which distributes the load evenly and gives you precise control and a quick response when you put the power down. The shell is built as a hybrid construction, with a 3D-shaped Curv reinforcement over the back providing solid, ergonomic lumbar support, while flexible side panels and soft materials ensure freedom of movement. With medium stiffness (flex index 8) and a high profile, the Radium strikes a balance between support and freedom - both when you're blasting across the water and when you're riding waves.

  • Spectre Bar 2: slim spreader bar with an aluminum windsurf hook and removable TPE flaps that prevent the bar from tipping upward and provide stable, even power transfer.
  • Curv hybrid shell: 3D-shaped Curv reinforcement at the back provides ergonomic support, combined with soft materials and flexible sides.
  • Internal Flex_Belt: flexible inner closure belt that conforms to your body and keeps the harness snug and securely in place.
  • Inner EVA padding: cushions pressure against your back and prevents the harness from riding up or rotating while sailing.
  • HD_Foam: elastic foam that doesn't absorb water – keeps the harness light and comfortable throughout your session.
  • Easy fit: lightweight PVC buckles and a soft neoprene belt make it quick to adjust the perfect fit.
  • Flex index 8: medium stiffness that combines support and mobility.

Technical details: Waist harness for windsurf · Spectre Bar 2 with windsurf hook · Curv hybrid shell · Flex index 8 (medium) · High profile · Sizes S–XL · Materials: 30% EVA, 25% neoprene, 20% PVC foam, 10% polyester, 10% polyamide, 5% polypropylene

Specifications
  • Year/Season
    2025
  • Article number
    48252-4742
  • Care & Maintenance

    With a little simple care, your ION Radium harness will keep its shape, stiffness and fit for many seasons. Follow these routines after every session on the water.

    Washing: Rinse the harness thoroughly in cold fresh water after every session to remove salt, sand and dirt. Use a mild soap if needed – avoid washing machines, strong cleaning products and bleach, as they break down the neoprene and foam.

    Drying: Remove the spreader bar and let the harness air-dry hanging or lying flat in the shade. Never use a tumble dryer, hair dryer or radiator, and avoid direct sunlight, which can make the materials brittle.

    Storage: Store the completely dry harness in a cool, dark place, loosely rolled or flat – never tightly folded. Check the hook, buckles, flaps and stitching regularly for wear, so you can spot problems before they become dangerous.

  • FAQ

    What is the ION Radium?

    The ION Radium is a waist harness for windsurf with a Spectre Bar 2 and Curv hybrid shell – ION's most popular windsurf harness for surfers who want support and mobility in one package.

    Are the spreader bar and hook included?

    Yes, the harness comes as a complete set with a Spectre Bar 2, an aluminum windsurf hook and removable TPE flaps, so you're ready to hit the water straight away.

    How stiff is the harness?

    The Radium has a flex index of 8, placing it at the medium-stiff end: solid support for your back and lower back, with flexible sides that preserve your mobility.

    Is the ION Radium suitable for beginners?

    The harness is primarily designed for intermediate and experienced windsurfers – for example, in speed, wave and freeride – who sail often and want high-quality lumbar support.

    How do I choose the right size?

    Measure your waist where the harness will sit and choose a size based on the size chart – if you're between two sizes, it's a good idea to try both for the closest fit.

    Can the harness ride up while sailing?

    The inner EVA padding and Internal Flex_Belt keep the harness securely in place and help prevent it from riding up or rotating while you sail.

    How do I care for the harness?

    Rinse it with fresh water after every session, let it air-dry in the shade, and store it dry and cool – avoid the washing machine, tumble dryer and direct sunlight.

    What is the harness made of?

    The combination of EVA, neoprene, PVC foam, polyester, polyamide and polypropylene makes for a lightweight, durable harness that can withstand salt water and heavy daily use.

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