Boost Confidence at Work
Stay polished during presentations, meetings, or long office days without worrying about sweat showing through your clothes.
Men's V-Neck Undershirt
$69.00
$89.00
Lightweight Comfort
Sweat Blocking & Wicking Under the Arms
Odor Neutralising Freshness
Invisible even under white shirts
2-3 Day Aus Shipping
30-Day Returns
Satisfaction Guarantee
Product Description
Designed for men 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 — absorbing moisture, inhibiting odour-causing bacteria, and keeping you feeling fresh throughout the day.
The close-to-body fit sits smoothly under shirts, knits and blazers, 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, 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 – helps wick moisture before it reaches your outer clothing
Silver-infused fabric – naturally antibacterial to reduce odour & reduces reliance on deoderant
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
Available in Deep Nude
Sizes XS–3XL
Size and Fit Guide
Sweatnix Undershirts are designed to wear close to your skin. Please check the size chart carefully - Men's run true to 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.
Customer Reviews
Why Our Fabric Works
Built with advanced multi layer protection that wicks & blocks moisture, controls odour, and keeps your outer clothes clean and dry.
Waterproof Layer
Soft and absorbent micro modal layer, durable and silent waterproof layer, and luxurious outer layer.
Silver Fights Odour
Micro modal fused with silver to fight odour causing bacteria will keep you fresher longer.
Micro Modal Fabric
Super soft, breathable micro modal designed for a smooth, lightweight feel that stays comfortable under colour top.
How Sweatnix Works
See how Sweatnix moves with you in real life, keeping your outfit feeling light, comfortable, and effortless from morning to night.
Micro Modal Made to Perform
Premium Austrian micro modal crafted for softness, breathability, and all-day comfort.
2×
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.
Stay Cool at Social Events
Move freely and enjoy gatherings, parties, or celebrations knowing your outfit stays clean, dry, and confidence-ready.
| Size | Chest | Chest (Stretched) |
Sleeve Circumference |
Sleeve Circumference (Stretched) |
Top to bottom of T |
|---|---|---|---|---|---|
| XS | 89 | 110 | 30 | 38 | 62 |
| S | 90 | 120 | 32 | 43 | 63.5 |
| M | 96 | 126 | 35 | 48 | 65 |
| L | 100 | 130 | 37 | 51 | 69 |
| XL | 104 | 132 | 39 | 53 | 70 |
| 2XL | 108 | 136 | 40 | 56 | 72.5 |
| 3XL | 114 | 146 | 44 | 58 | 74.5 |
Runs true to size
Your Ideal Size Starts Here
Use our measurements and fit notes to choose the size that feels best for your body.
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.
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 anything — with no bulk or visible lines.
4. Most undershirts weren’t designed for modern sweat triggers. Sweatnix was.
Traditional undershirts don’t account for:
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 (link next to the size selection section) - the men's undershirt runs true to size.
Will the fabric feel clingy to my body?
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.
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?
Follow the garment's care instructions to help maintain its fit and feel.
