Freewheelers X Ion'e'air "Purification" Band

Size Guide

As one of Japan's most popular and peculiar modern accessories, the ION band's idea of air purification has been considered, even before COVID! This is a collaboration between one of Japan's most serious air purification brands 'ION E AIR' and FREEWHEELERS!

Made up of a specially manufactured silicone material, this ION wrist band will first and foremost, keep your"Chi (airflow)" going strong. Wearers in Japan rock this daily due to its effectiveness to reduce pollen from your surroundings when moving around.

With a vintage, deadstock blue colour-way and the classic FW logo. It's an easy to wear accessory with a peace of mind effect!


  • S (16cm; usually for kids and women whose wrist size is around 13cm~15cm)
  • M (20cm; for guys whose wrist size is around 16cm~19cm)

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How We Measure

Pants and Shorts


With the major buttoned up open the jeans and lay them flat like shown. Measure from the front where the major button closes to the back belt loop. Then double this measurement to achieve the waist measurement.

The way we measure is different from 'Side to Side', If you are not used to our method you should downsize by 1 inch.

For example, side to side measurement for The Flat Head 3002 waist is 28inch and using our method 29.25 inch.

Front Rise:

With the jeans lying flat measure from the crotch bar tack to the top of the waistband. 

Back Rise:

Spread out the crotch so the bar tack is visible, then measure from the crotch to the top of the waistband.


One inch down from the crotch measure flat across to the other side.


Flatten the leg and measure along the inseam from the crotch to the leg hem. 

Leg Openning:

Measure straight across the hem from side to side.



Lay flat then measure from the shoulder's edge to the other shoulder's edge.


Lay shirt flat and measure from pit to pit.

Sleeve length:

With the sleeve flat measure from the shoulder to the cuff.

Arm hole openning:

Measure from the shoulder down to the pitt.

Vertical length:

With the shirt facing down, Measure from below the collar to the bottom hem.