🎉 Founders Price · 2 Pouches €53 · Free Shipping · Save €6 ·

Your Gym Clothes
Aren't Actually Clean

Your Gym Clothes Aren't Actually Clean

Remove sweat bacteria trapped in polyester with an enzyme-powered activewear wash. Regular detergent can't reach what Thesis can.

Removes trapped odor from synthetic fibers

Designed specifically for polyester & elastane

Skin-conscious formula — reduces bacne triggers
Founders batch — limited quantity!
OUT OF STOCK
Restock soon! PREORDER NOW
Hurry! LET BUY NOW

Founders batch — limited quantity!

2 Pouches — €53 · Free shipping · Less than €0.88 per reset  · 30-Day refund 

★★★★★
4.9 Average Rating

10000+
Atheletes Trust Thesis

5x

Odor Removal vs Regular

30'

Deep Soak Reset
Microscopic Polyester Fibers
🔬 Sweat oils + bacteria become trapped inside hollow polyester fibers — invisible to the eye, impossible to wash out with standard detergent

The Hidden Problem

Why Normal Detergent Fails Activewear

  • Polyester Traps Sweat Oils 
    Synthetic fabrics have hollow fiber structures that absorb sweat lipids deep inside  far below the surface where regular detergent reaches.

  • Bacteria Colonize the Fibers
    Trapped oils become a breeding ground. Bacteria form biofilm colonies in the fiber structure — surviving wash after wash.

  • Standard Detergent Can't Remove Buildup
    Conventional detergents are formulated for cotton. They lack the enzyme profile to break down sweat lipids embedded in polyester.

This causes persistent odour and recurring bacteria that transfer back to your skin — a leading trigger of body and back acne in active people.

Activewear Reset Technology

Built for Synthetic 
Fabrics

Three active systems that work together to strip your activewear back to genuinely clean.

  • Enzyme System — Lipase + Protease
    Lipase dissolves sweat oils. Protease breaks down protein residue. Together they dismantle the bacterial biofilm standard detergent leaves behind.

  • Oxygen Cleaning System
    Active oxygen molecules penetrate deep into fiber structures, lifting bound odour molecules and neutralizing bacteria at the source.

  • Eco-Conscious Ingredients
    Plant-derived surfactants, biodegradable formula, zinc ricinoleate for odour binding. Skin-friendly and safe for synthetic fibres.

Side-by-Side ComparisoN

Normal Wash vs Activewear Reset 

the difference isn't subtle. your activewear deserves a wash built for it.

Normal Detergent

Activewear Reset

Odor removal

✗ returns quickly

✓ deep odor removal

Bacteria breakdown

✗ bacteria remain

✓ enzyme breakdown

Polyester compatibility

✗ generic formula

✓ activewear-specific

Bacne triggers

✗ residue stays

✓ bacteria removed

Fabric protection

✗ can degrade stretch

✓ safe for elastane

Eco credentials

✗ synthetic surfactants

✓ biodegradable formula

Deep Clean for Synthetic Fabrics

Three Steps to Genuinely Clean Activewear

Simple. Effective. 30 minutes.

Fill & Dissolve

Fill a basin or sink with lukewarm water (30°C works perfectly). Add one scoop of Activewear Reset powder and stir 
until dissolved.

Soak & Reset

Submerge your activewear. The enzyme system begins breaking down sweat oils immediately. Soak for 30 minutes — longer for 
heavy build-up.

Rinse & Wear

Rinse thoroughly. Your clothes come out genuinely fresh — no residue, no odour, no bacteria. Safe for Lululemon, Alo, Gymshark, and all synthetic fabrics.

Deep Clean for Synthetic Fabrics

Three Steps to Genuinely Clean Activewear

Simple. Effective. 30 minutes.

  • Fill & Dissolve

Fill a basin or sink with lukewarm water (30°C works perfectly). Add one scoop of Activewear Reset powder and stir 
until dissolved.

  • Soak & Reset

Submerge your activewear. The enzyme system begins breaking down sweat oils immediately. Soak for 30 minutes — longer for 
heavy build-up.

  • Rinse & Wear

Rinse thoroughly. Your clothes come out genuinely fresh — no residue, no odour, no bacteria. Safe for Lululemon, Alo, Gymshark, and all synthetic fabrics.

5x

Odor Removal vs Regular Detergent

100%

Safe for Stretch & Synthetic Fabrics

30'

Full Activewear Reset

60

Total Treatments in the Bundle

Early Feedback

From Our Beta Testers

I've been washing my Lulu leggings for two years and they always smelled within an hour of class. One soak with Thesis and they came out genuinely fresh. I didn't think it was possible.

Sophie M.

Pilates instructor · Berlin

My Gymshark shorts smelled fine when they came out of the wash but the second I started training they reeked. Thesis completely solved this. Two soaks and the problem is gone.

Tom V.

CrossFit athlete · Rotterdam

Finally fixed the smell in my running shirts. I thought it was just how they were after a few months. Turns out they just needed a proper enzyme soak. 
Game changer.

Amelie K.

Marathon runner · Amsterdam

Helped reduce the breakouts I used to get from gym clothes. I was skeptical but the science actually makes sense — bacteria in polyester fibres. This clears them out.

Marco D.

Swimmer · Milan

Been dealing with back breakouts for ages and couldn't figure out why. A friend suggested it could be my gym kit. After a week using Thesis I noticed a real difference. 
Skin is clearer.

James R.

Powerlifter · Manchester

I ride 5 days a week. My clothes were starting to smell even after washing. I was about to throw it all out. One batch soak with Thesis and it smells brand new. Brilliant product.

Laura T.

Cyclist · London

  • The Gym Clothes–Skin Connection
    Bacterial biofilm on activewear re-transfers to skin during exercise. For people prone to body acne, this is often a significant and overlooked trigger. Thesis addresses the source: the bacteria in the fabric itself, not just the symptom on the skin.

Choose Your Bundle

Reset Your Activewear

Founders pricing. Won't last long.

1 Pouch

750g 

30 activewear resets
€29,00

+ shipping

Less than €0.96 per reset

2 Pouches

1500 g

60 activewear resets
€53,00

✓ FREE SHIPPING 

Less than €0.88 per reset

3 Pouches

2250 g

90 activewear resets
€74,00

✓ FREE SHIPPING 

Less than €0.81 per reset

  • 30 activewear resets

  • Free EU shipping on 2+ pouches

  • Skin-conscious formula

What You Can Trust

Formulated With Integrity

every ingredient chosen for efficacy, safety, and sustainability.

  • Dermatologically Conscious Formula
    Free from harsh surfactants and skin-sensitising agents. Designed for people with active, sweat-exposed skin.

  • Recyclable Packaging
    Concentrated powder format reduces plastic waste significantly versus liquid detergents. Minimal, recyclable packaging.

  • Biodegradable Surfactants
    All plant-derived, biodegradable cleaning agents. Safe for the environment without compromising performance.

  • EU Compliant Ingredients
    Fully compliant with EU Detergents Regulation (EC) No 648/2004. All ingredients fully disclosed and safety-assessed.

EU Detergents Regulation (EC) No 648/2004 — All Thesis Fabric Care ingredients are fully disclosed, biodegradability-tested, and compliant with European safety standards for consumer detergents.

Common Questions

Everything You Need to Know

Is it safe for sensitive skin?

Yes. Thesis Activewear Reset is formulated without skin-sensitising agents, optical brighteners, or harsh surfactants. It's designed with active, sweat-exposed skin in mind. If you have a specific known allergy, review the full ingredient list before use.

Does it work on polyester and elastane?

Absolutely — this is exactly what it was designed for. The enzyme system specifically targets the sweat oil biofilm that builds up in synthetic fibers like polyester, nylon, and elastane blends used in activewear from Lululemon, Alo Yoga, Gymshark, Vuori, Nike, and others.

Can I use it in cold water?

The formula works best at 30°C, which protects your activewear while still activating the enzymes effectively. At cooler temperatures the enzyme activity slows slightly — you can compensate by extending the soak time to 45–60 minutes.

Does it contain harsh chemicals?

No. Thesis uses plant-derived, biodegradable surfactants and enzyme-based cleaning instead of harsh synthetic chemicals. The full ingredient list is available on request. The formula is compliant with EU Detergents Regulation (EC) No 648/2004.

How many treatments per pouch?

Each 750g pouch contains approximately 30 full activewear resets. The 2-pouch bundle gives you 60 treatments — enough for a full year of weekly resets for most athletes. At €53, that's less than €0.88 per treatment.

How is it different from sport detergent?

Sport detergents are still machine detergents — they operate on the surface of fabric during a wash cycle. Thesis Activewear Reset is a dedicated soak product. The extended contact time and high enzyme concentration allow it to break down the deep fiber buildup that machine washing cannot remove.

Can it help with body acne?

Many beta testers reported improvements in body and back acne after using Thesis regularly. This is consistent with the mechanism: bacterial biofilm on activewear can transfer back to skin during exercise and contribute to breakouts. Removing the bacteria from the fabric addresses the source, not just the symptom.

Your Activewear Deserves a
Genuine Clean

Enzyme-powered. Built for synthetic fabrics. Less than €0.88 per reset.

2 Pouches · €53 · Free Shipping · 30-Day Refund
Activewear Reset — Enzyme Fabric Soak

Activewear Reset — Enzyme Fabric Soak

€53,00