How do I detox my wardrobe from synthetic fabrics?

Start by auditing what you own — check every label and sort garments by fabric composition. Prioritize replacing items that touch your skin directly (underwear, sleepwear, base layers) with natural fibres first. You do not need to replace everything at once. As synthetic items wear out, replace them with cotton, linen, wool, or silk alternatives. Use Fibr while shopping online to check fabric composition before buying.

Which clothes should I replace first for health reasons?

Replace items closest to your skin first: underwear, bras, socks, undershirts, sleepwear, and activewear. These garments have the most skin contact, the longest direct wear times, and often involve sweat — which increases chemical absorption from synthetic fabrics. After that, prioritize items with plastisol prints and anything labelled stain-resistant.

Can I detox my wardrobe on a budget?

Yes. Secondhand shops are full of natural fibre clothing at a fraction of the retail price. Cotton, linen, and wool garments from previous decades are often higher quality than new fast fashion. Uniqlo and some H&M basics offer 100% cotton options under $15. Focus on replacing one category at a time and apply cost-per-wear thinking — a $30 cotton tee worn 100 times costs less per wear than a $10 polyester one worn 20 times.

Do I need to throw away all my polyester clothes?

No. A wardrobe detox is about gradual improvement, not wasteful purging. Throwing away functional clothing is environmentally counterproductive. Wear out your existing synthetic items (especially outerwear where skin contact is minimal), and replace them with natural fibres when they need replacing. Reserve immediate replacement for items closest to your skin if health is your primary concern.

How do I check what my clothes are made of?

Every garment sold in the US, EU, and UK is legally required to have a fabric composition label. Check the care label (usually on the inside seam or neck) for fibre percentages. When shopping online, look for the 'Composition' or 'Materials' section on the product page — or install Fibr, which displays fabric composition directly on product images as you browse.

How to Detox Your Wardrobe: A Step-by-Step Guide

You do not need to throw away your entire wardrobe and start over. A wardrobe detox is not about perfection — it is about making informed changes, starting with the items that matter most for your health, and improving gradually over time.

Here is a step-by-step approach that works whether you have a weekend or a year.

Step 1: Audit What You Own

Pull everything out and check the labels. Every garment sold commercially is required to display its fabric composition. Sort your clothes into three categories:

Category	What It Includes	Action
Natural (80%+)	Cotton, linen, wool, silk, hemp — with minimal synthetic blending	Keep. These are your foundation.
Blended (40-79% natural)	Cotton-polyester blends, wool-nylon blends, linen-viscose blends	Keep for now. Replace as they wear out.
Synthetic (80%+ synthetic)	Polyester, nylon, acrylic, or synthetic-dominant blends	Prioritise for replacement, starting with skin-contact items.

This audit will probably surprise you. Most people discover that 60-70% of their wardrobe is synthetic-dominant — even if they did not intentionally buy polyester. Fast fashion has made it the default.

Step 2: Prioritise by Skin Contact

Not all garments carry equal risk. The items closest to your skin, worn for the longest periods, with the most sweat involvement, should be replaced first.

Priority 1 — Replace First

Underwear and bras — direct contact with sensitive skin, worn all day
Sleepwear — 6-8 hours of continuous skin contact, often in warm conditions that increase chemical transfer
Socks — feet sweat more than most body parts, increasing absorption
Base layers / undershirts — full torso skin contact

Priority 2 — Replace Next

T-shirts and casual tops — high skin contact, frequently worn
Activewear — sweat dramatically increases chemical absorption from synthetic fabrics
Bed sheets and pillowcases — 8 hours of facial and body contact nightly

Priority 3 — Replace When Worn Out

Trousers and jeans — some skin contact, but often blended fabrics
Dresses and skirts — variable skin contact depending on style
Knitwear and jumpers — often worn over base layers

Priority 4 — Lowest Urgency

Outerwear — minimal direct skin contact if worn over other layers
Formal wear — worn infrequently

Step 3: Know What to Buy

When replacing items, aim for these fibres:

Cotton Versatile, affordable, breathable. Look for 100% cotton, not blends.

Linen Strongest natural fibre. Ideal for warm weather. Gets softer with washing.

Merino Wool Temperature-regulating, naturally antimicrobial, excellent for base layers.

Silk Hypoallergenic, thermoregulating, gentle on skin. Best for sleepwear.

Fibres to be cautious about:

Viscose/rayon — natural origin but chemically intensive production. Better than polyester, but not ideal.
Tencel/lyocell — closed-loop production makes it cleaner than viscose. A good middle ground.
Bamboo — usually bamboo viscose, which is chemically processed. True bamboo linen is rare.

Step 4: Where to Buy Natural Fibres Affordably

The biggest objection to natural fibres is cost. But it does not have to be expensive:

Secondhand and thrift shops — older garments are more likely to be natural fibre. Pre-fast-fashion clothing was made from cotton, wool, and linen by default. Check labels in charity shops — you will find 100% cotton and wool items for a few pounds.
Uniqlo — offers 100% cotton t-shirts, supima cotton basics, and linen ranges at accessible prices
M&S basics — the cotton underwear and cotton-rich t-shirt ranges are affordable and widely available
H&M / Zara basics — not all fast fashion is polyester. Both carry 100% cotton basics if you check composition. Use Fibr to filter while browsing.
Primark Essentials — some basic cotton tees and underwear are 100% cotton at the lowest price point

Step 5: Use Fibr While Shopping

The hardest part of a wardrobe detox is shopping differently. When you are browsing online, you see images and prices — fabric composition is buried in product details. Fibr changes this by displaying the fibre breakdown directly on product images as you shop.

This means you can:

Instantly see which items are 100% cotton versus polyester blends
Compare fabric composition across similar products without clicking into each one
Spot the natural fibre options within fast fashion catalogues
Make informed choices in seconds, not minutes

Step 6: Maintain Your Detoxed Wardrobe

Once you have made the initial replacements, keeping a clean wardrobe is straightforward:

Check composition before every purchase. Make it as automatic as checking the price.
One in, one out. When you buy a natural fibre replacement, retire the synthetic it replaces.
Wash new items before wearing. Even natural fibre garments carry finishing chemicals from manufacturing. One wash removes 60-80% of surface residues.
Set a threshold. Decide on your minimum natural fibre percentage (80% is a practical target) and stick to it for skin-contact garments.

A wardrobe detox is not a weekend project you complete and forget. It is a shift in how you evaluate clothing — from appearance and price to material and composition. The more you check labels, the more natural your wardrobe becomes over time.