Which Flexi For You?

Flexi Vintro is the ultimate binding for prolonged expeditions in extreme cold. It doesn't use any mechanical components (such as ratchet buckles), just a tried and tested webbing boot harness that stands up to everything (and is used by the US military).  Vintro is available in regular and wide width and can be used with almost any flexible-soled boot.

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Flexi Sinch is similar to Vintro, instead using buckles mounted on webbing stems and ladder straps. Tested on prolonged South Pole and Greenland journeys we recommend Sinch for any land-ice expedition, and we use them on our North Pole last degree trips. Sinch is our easiest binding to step into, is available in regular and wide width and suited to almost any flexible-soled boot.

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Flexi Paramark utilises ladder straps and ratchet buckles together with a high-back heel cuff for backcountry, telemark and kite skiing. We use them on our Australian Alps trips and for non-technical kiting. Paramark is available in regular and wide width and can be used with almost any flexible-soled boot.

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How to measure up

First, measure your boot-sole width at 2 places (see diagram below). 

For Vintro, Sinch and Paramark 

  • measure A width of your sole 60mm forward of the back of the heel 
  • measure B width of your sole 200mm forward of the back of the heel 

For Plateau

  • measure C width of your sole 30mm forward of the back of the heel 
  • measure D width of your sole 210mm forward of the back of the heel 

Check the measurements agains the Chart of Specifications to determine whether you require Regular or Wide width (Plateau bindings are configurable for all widths).


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Bespoke service

We will modify your Flexi binding to suit your boot-width characteristics. Fee $80.

Enquire today.