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Women’s Crop Undershirt

Sweatnix Women’s Crop Undershirt 

(3 reviews)

Women’s Crop Undershirt

$69.00
$89.00

Blocks Underarm Sweat Fast

Silver Fabric Stops Odour Fast

Odor Neutralising Freshness

Find your size

Size

2-3 Day Aus Shipping

30-Day Returns

Satisfaction Guarantee

Product Description

Designed for women who want confidence without compromise, the Sweatnix Anti-Sweat Crop is your invisible layer of protection against underarm sweat, odour, and discomfort.

 

Crafted from luxuriously soft micro-modal fabric and infused with silver ions, this crop works quietly in the background — blocking moisture, inhibiting odour-causing bacteria, and keeping you feeling fresh throughout the day.

 

The close-to-body fit sits smoothly under shirts, blouses, knits and dresses, while the breathable stretch fabric moves with you, not against you. No bulk. No visible lines. Just discreet comfort where you need it most.

 

Whether you’re navigating long workdays, travel, hormonal changes, or everyday heat, Sweatnix helps you wear what you want — without worrying about sweat patches or smells.

 

Why you’ll love it

Anti-sweat underarm protection – blocks moisture before it reaches your outer clothing

Silver-infused fabric – naturally antibacterial to reduce odour

Ultra-soft micro-modal – breathable, lightweight and gentle on skin

Invisible under clothing – smooth, discreet fit designed to sit flat

Stretch comfort – flexible support that moves with your body

All-day confidence – ideal for work, travel and everyday wear

 

Fit & wear

Designed to be worn as an undergarment

Close fit for comfort & creates a smooth silhouette 

Available in Deep Nude

Sizes XS–4XL

 

Wear confidence. Forget sweat.

Size and Fit Guide

Sweatnix Crop Tops are designed to wear close to your skin. Please check the size chart carefully as they run a little smaller than your usual size. If in doubt, go up a size.

Materials

High Quality Modal Fabric infused with Silver ions - Modal is made from fast growing Birch Trees & is sourced in Austria. 

Care Instructions

To keep your Sweatnix crop performing at its best:

 

Machine wash (30°C)

Wash with similar colours

Use mild detergent only

Tumble dry on a cool setting (line dry is best)

Cool iron if required.

 

Do not use fabric softener (this can reduce absorbency and the effectiveness of the silver-infused fibres)

Do not bleach

Do not dry clean

 

Proper care helps maintain the fabric’s softness, breathability, and odour-resistant performance over time.

Sweat-Proof Protection

Soft Modal Comfort

Stays Invisible Under Clothing

Australian-Designed

Australian Designed

What Makes Sweatnix Different

Built with advanced multi layer protection that absorbs moisture, controls odour,

and keeps your outer clothes clean and dry.

How Sweatnix Works

See how Sweatnix moves with you in real life, keeping your outfit feeling light, comfortable, and effortless from morning to night.

Alt image

Micro Modal Made to Perform

Premium Austrian micro modal crafted for softness, breathability, and all-day comfort.

More Breathable Than Cotton

Cools you down fast, helping manage hot flushes and heat sensitivity with ease.

50%

Softer Than Cotton

Smooth, skin-friendly feel ideal for sensitive or easily irritated skin.

180 to 190g

Premium Weight

Drapes naturally without clinging, creating a polished look under any top.

Boost Confidence at Work

Stay polished during presentations, meetings, or long office days without worrying about sweat showing through your clothes or causing extra trips to the drycleaners.

Stay Cool at Social Events

Stay Cool at
Social Events

Move freely and enjoy gatherings, parties, or celebrations knowing your outfit stays clean, dry, and fresh.

Your Ideal Size Starts Here

Use our measurements and fit notes to choose the size that feels best for your body. If you’re between sizes, check the fit tips below for the most comfortable option.

Size

Bust 
(minimum)

Bust 
(min)

Bust 

(maximum)

Bust 
(max)

Sleeve Circumference

Sleeve Circumference
(Stretched)

Top to bottom of crop

XS/6

70

86

28

38

32

S/8

71

90

30

40

34

M/10

75

95

31

42

36

L/12-14

80

100

32

44

38

XL/14-16

86

106

34

46

40

2XL/18-20

89

111

35

48

42

3XL

93

118

36

50

44

4XL

99

122

38

52

46

if in doubt, go up a size.

Your Ideal Size Starts Here

Use our measurements and fit notes to choose the size that feels best for your body. If you’re between sizes, it's best to select the larger size.

Why Sweatnix Performs Better

See how our fabric, fit, and sweat protection compare to regular undershirts.

Ordinary Shirt

Sweat-blocking underarm panels

Odour-neutralising silver infusion

Ultra soft, breathable micro modal

Invisible under clothing

No wrinkling or shrinking

How Real People Stay Sweat-Free

See how Sweatnix helps different people stay dry, secure, and worry-free,

no matter what their day brings.

Find Answers With Ease

Explore helpful information about sizing, care, sweat control, and delivery. If you don’t see the answer you need, our team is always ready to assist.

browse all faqs

What makes Sweatnix different from regular undershirts?

Most traditional undershirts — whether made from cotton, bamboo, merino or synthetic blends — were designed for basic coverage and comfort, not targeted sweat control. Sweatnix was created specifically to manage underarm sweat discreetly.

 

1. Traditional undershirts absorb sweat. Sweatnix manages it.

Most undershirts rely on absorbent fibres:

Cotton and bamboo absorb moisture and tend to hold it

Merino regulates temperature but still absorbs sweat

Synthetic fabrics wick moisture but can trap heat and odour

Sweatnix uses advanced micro-modal fabric designed to wick and disperse moisture efficiently, helping contain sweat before it reaches your outer clothing — without feeling heavy or damp.

 

2. Most undershirts don’t address odour at the source. Sweatnix does.

Odour develops when moisture sits against the skin and allows bacteria to grow.

Cotton and bamboo can stay damp

Merino helps with odour but adds warmth and bulk

Synthetics  retain odour quite routinely!

 

Sweatnix fabric is infused with silver ions, which are naturally antibacterial and help inhibit odour-causing bacteria, rather than just masking smells.

 

3. Regular undershirts are visible. Sweatnix stays discreet.

Many undershirts are:

Too thick

Poorly shaped

Designed to be worn as outer layers

 

Sweatnix is lightweight, smooth and body-contoured, designed to sit flat under blouses, knits and dresses — with no bulk or visible lines.

 

4. Most undershirts weren’t designed for modern sweat triggers. Sweatnix was.

Traditional undershirts don’t account for:

Hormonal changes

Heat spikes and stress

Long workdays or travel

Professional clothing that shows sweat easily

 

Sweatnix was created specifically for unpredictable, everyday underarm sweat, offering confidence across work, travel and daily life.

 

Sweatnix isn’t just an undershirt.
It’s a performance layer designed for real life.

Are the fabrics suitable for sensitive skin?

Sweatnix is designed to be gentle on sensitive skin.

The crop is made from ultra-soft micro-modal fabric, which is lightweight, breathable, and smooth against the skin. Micro-modal is known for causing less friction and irritation than many traditional undershirt fabrics.

 

Sweatnix is also silver-infused to help inhibit odour-causing bacteria. By reducing bacterial build-up, the fabric can help minimise irritation that may occur when sweat sits against the skin for long periods.

 

That said, everyone’s skin is different. If you have very sensitive skin, allergies, or a known reaction to silver or performance textiles, we recommend washing the garment before first wear and discontinuing use if irritation occurs.

How do I find my size?

Please review the size chart carefully & if in any doubt, go up a size.

Will the fabric feel clingy to my body?

No — Sweatnix is designed to feel smooth and breathable, not sticky or clingy.

 

The crop is made from lightweight micro-modal fabric with stretch, allowing it to move with your body rather than cling to it. Unlike some synthetic performance fabrics, micro-modal has a soft, natural hand-feel that stays comfortable even during long wear.

 

When worn as intended — as a close-fitting underlayer — it sits gently against the skin to help manage moisture without feeling tight, plasticky or restrictive.

Will the undershirt stretch or shrink over time?

Sweatnix is designed to hold its shape with regular wear and washing when cared for properly. 

 

Avoid excess heat when washing and drying - and avoid fabric softeners to maintain fit and performance.

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(3 reviews)

Women’s Crop Undershirt

$69.00

Find your size

Size