Don't let sweat stains ruin your summer outfits

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Feel Confident In Your Skin

Wear Your Story, Not Your Sweat

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Absorbs Armpit Sweat

Prevents Sweat & Deodorant Stains

Odour Blocking

Lightweight & Breathable

360º Stretch

Your Shield Against Sweat Damage:

Sweat isn't just uncomfortable; it's a silent fabric assassin. Salts, oils, and acids in perspiration can break down clothing fibers, leading to thinning, discoloration, and an overall diminished appearance.

Undeur acts as a shield, preventing sweat from coming into contact with your clothes. It's not just about avoiding visible sweat marks; it's about ensuring your garments remain as pristine as the day you bought them.

Without Undeur

With Undeur

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It was my first time seeing something like this and I didn't think I would need it, but after wearing it for a week to test it under my shirts, it made sense. I didn't really want to return the sample by the end of the week because it felt like it was my security blanket!

Gerine H. ~ WA

No more sweat stains during my presentations. My blouses feel fresher, and I'm washing them way less. A total win!

Zoe T. ~ MA

Protecting my investment in designer tops has never been this easy. Undeur not only saves me from frequent washes but also ensures my tops remain pristine. Truly a game changer in clothing care!

Hannah P. ~ CA

Stop sweating the small stuff • Confidence starts with Undeur •

Soft & Breathable Fabric

Undeur uses a combination of Siro Micromodal and Spandex to provide an ultra-soft handfeel and breathability for all-day comfort!

Removable Underarm Shield Pads

Undeur's patent pending Shield Pads are secured with two velcro pads making it easy to remove and replace, helping you reduce that laundry load!

Easy Clasp

We designed the clasp to be as effortless and comfortable as possible. With a simple 'hook and eye' closure, you can simply pinch to release.

Comfortably Secure

Our sewn in, knitted elastic ensures a gentle yet secure fit while remaining breathable for all day comfort.

Super Absorbant

Our underarm shield pads are designed to absorb up to 2 tablespoons of sweat, keeping you feeling dry and fresh all day long.

20-40 Washes

The average lifespan of a t-shirt or blouse based on how many washes it can handle before deteriorating.

780 Gallons

The average amount of water in gallons used to wash a single garment over it's lifetime.

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Invest in Your Style, Care for Your Clothes

You've curated a wardrobe that speaks to your style, investing in pieces that resonate with your identity.

Undeur is here to ensure that investment stands the test of time. Wear, flaunt, repeat – without the constant wear and tear.

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By Women For Women

The underlined "e" and "u" in the Undeur logo is a reminder to help empower and uplift those who need it most.

From the boardroom to brunch and everything in between Undeur is designed to fit gracefully and discreetly against your underarms, helping to keep your tops dry and odor-free, and most importantly you...feeling secure and confident all day!

About Us

FAQ

Get your hands on Undeur before we sell out of our first run!

Our customer support is available Monday to Friday: 9am PST to 6pm PST.Average answer time: 24h - 48h

The Undeur Blog

Undeur The Surface.

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Oh My Armpits!

Armpits are a funny thing. We don't talk about it too much, don't we? When we do, most of the time it's not always put in the most glamorous or positive light! Armpits, or underarms - are unique in...