Nano Colloid Premium Denim Wash By Warehouse

Size Guide

Take care of your denims with Warehouse’s classic denim wash!

This detergent is made specially to only remove sebum stains and impurities from your denims whilst maintaining their indigo colour!

Made from naturally occurring ingredients, this detergent is a waste-free solution for your denim washing needs! This works gently through the warp and weft of your denims, giving them a full wash whilst ensuring no damage to the fabric or discolouration to the indigo.

The gold edition of this wash is the floral version from warehouse, which should leave you with a soft and familiar scent after washing, whilst the silver variation is the citrus scented edition, for a sharp and fresh change of pace.

It is recommended that one capful is used in the wash with your denims, and if you are trying to remove a particular stain to apply some to the affected area prior to washing.

  • Made with natural soy acid and highly purified water
  • Nanoparticle technology
  • Gentle but strong stain remover
  • Great for not just denim but all cotton garments
  • Made in Japan

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How We Measure

Pants and Shorts


With the major buttoned up (i.e. the top button) open the jeans and lay them flat, like shown. Measure from the front where the major button closes to the back belt loop. Double this measurement to find the waist measurement.

The way we measure the waist is different from the 'Side to Side' technique. If you are used to the 'side to side' technique you can roughly roughly downsize by 1 inch.

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

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.