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PEACE OF MIND GUARANTEE

ACTIVE UNDERWEAR, DESIGNED TO BE UNSEEN

PEACE OF MIND, BUILT IN

DESIGNED TO LAST

SHIPPING ON US, OVER $69

Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)
Julia - grey top/black undies - wears size M (usually 8-10)
Shraya - grey top/black undies - wears size XL (usually size 14)
Emma - cream top/taupe undies - wears size S (usually size 8)

V2 Seamless Anti-Slip G-String

You wont reach for your old undies again.

freshly brewed. refined. built for better peace of mind.

$29.96 Regular price $39.95

Peace of mind guarantee

Camel toe proof

Made from recycled coffee beans

Buttery soft

This is our updated anti-slip design - coffee-made - with a flatter spacer for an even smoother finish under activewear

✨ seamless

✨ stays put

✨ silky smooth

✨ 200% faster drying sweat-wicking technology

✨ bamboo antimicrobial gusset

✨ 3x More odour control than other fabrics

✨ minimal VPL

✨ non-roll, non-slip

Because the goal isn’t to feel it.
The goal is to forget it’s there.

Please use size and fit notes as well to make an informed decision, as each garment has a different fit.

Size Find your size ? XS
ColourBlack

Sizing Recommendation:

Recommended to opt for normal size for a firmer fit, if you would prefer a looser fit size up!

View the sizing comparison
Subtldays
Current version Mid-Rise
XS S M L XL
Subtldays Version 1 - 2024 XXS XS S M L
Bonds Match Its
Seamless Hi Gee
6 8 10 12 14
Calvin Klein Modern Cotton
Thong
XS S M L XL
Cotton On Party Pants
Seamless G-String
2XS XS S M L
Description

Introducing the V2 anti-slip seamless g-string:

Your ultimate invisible layer, mid-rise, meticulously engineered to wear under activewear or jeans. Experience our signature smooth, rapid drying, coffee-made fabric with a four-way stretch, odour control, stitched in bamboo gusset and innovative camel-toe-proof technology. Engineered with anti-slip, non-rolling technology, it stays perfectly in place without riding up or chafing. Stylish and functional for both workouts and everyday wear.

why coffee made?

We took what you already loved and made it better.

• flatter spacer for a smoother look
• anti-slip hold
• same soft stretch
• same comfort
• still camel-toe-proof
• 3x more odour control
• 200% faster drying


No adjusting.
No mid-class checking.
No second guessing.
Just one less thing to manage.

made for

Women who live in activewear.
Women who are done working around design flaws.
Women who have enough on their plate already.

If you’ve ever:
• doubled up liners
• bought leggings with no front seam “just in case”
• adjusted mid-workout
• told yourself “it’s fine” when it wasn’t

This is for you.

Fabric and care

MAIN Recycled Coffee-Beans
67% Nylon 33% Spandex 

Bamboo Spandex Gusset

Experience long-lasting underwear that wins 5* reviews for its performance, washability and shape retention. Engineered for durability, this style was built to last.

•Cool wash, 40° max.
•Air-dry flat in a shaded area
•Do not iron or tumble dry

Shipping information

Within Australia, Standard shipping is free over $69!

Free product over $119

Free express shipping on orders over $149

Standard Delivery time is approximately 3-7 business days AU (longer if outside of the metropolitan area).

100% MONEY BACK GUARANTEE

RAPID DRYING

ECO-FRIENDLY

FRONT WEDGIE PROOF

ANTI ODOUR & ANTI BACTERIAL

Workout Thong Image

Unparalleled performance

aka: underwear that actually behaves under leggings.

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minimise lines, maximise comfort

You know that little mid-workout check? Yeah. Not needed. These sit smooth. No weird shifting. No “wait is that…?” moments. Just put them on and forget about them.

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coffee-made freshness

Yes, it’s made with coffee. No, you won’t smell like a latte. It dries 200% faster than other fabrics. Handles sweat. Keep odour in check with 2x more odour control than cotton. So you can survive hot pilates without spiralling.

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designed to move (because you do)

Four-way stretch that moves with your body. Anti-slip construction that stays in place. Camel-toe-proof engineering built in. Squat, stretch, sprint — consider it handled.

peace of mind guarantee

because you have enough to worry about already.

why it works

Regular underwear wasn’t designed for activewear.

Seams pull. Fabric shifts. Moisture lingers.

You adjust. You check. You think about it.

That’s not a confidence issue.

It’s a design issue.

coffee-made

built different

Our coffee-made performance fabric dries up to 200% faster than cotton and delivers 3x odour control.

A thin, flexible built-in spacer gently moulds to your body to minimise frontal rise — without bulk or stiffness.

Seamless. Anti-slip. Designed to move.

So you can stop managing it…

and get on with your workout.

Set apart by design

Subtldays logo Brand X Brand Y
Bamboo gusset Modal Cotton
200% faster drying Traps moisture Traps moisture
3x more odour control
Moisture wicking
Non slip, non bunching bonded edges Material that rolls & bunches Super thin, rolls & falls down
Superior breathability Synthetic fabrics Synthetic fabrics
Eco-friendly coffee fabric
Buttery soft
Pricing $90 for 3 $100 for 3 $65 for 3

Frequently Asked Questions

General Questions

Are your undies really camel-toe proof?

Yes. That’s the point.

Our built-in ultra-thin spacer + seamless construction are designed to minimise frontal rise under activewear. It’s not bulky padding. It’s subtle structure.

You shouldn’t have to adjust yourself mid-class. Consider it handled.

Will this work for me if I don’t usually get camel toe?

Absolutely.

Not everyone experiences it — and that’s okay. But many women do and don’t talk about it.

Even if you’ve never struggled with it, our designs still offer seamless comfort, anti-slip security, and a smooth fit under leggings.

It’s less about “fixing” something.

More about not having to think about it at all.

What makes coffee-made fabric different?

It’s performance-level comfort.

Our coffee-made fabric:

• Dries up to 200% faster than cotton
• Offers 3x more odour control
• Feels buttery-soft
• Is breathable + antibacterial

So you stay fresh during workouts, long days, travel, and everything in between.

It’s not just cute underwear. It’s engineered active underwear.

Are they bulky?

No.

It’s thin, flexible, and moulds gently to your body. You won’t feel stiff padding.

You’ll just notice you’re not checking yourself anymore.

What’s the difference between Mid-Rise and High-Rise?

Mid-Rise: Sits comfortably below the belly button. Great for lower-rise leggings or everyday wear.

High-Rise: Sits higher on the waist with a more sculpted feel. Extra smoothing and coverage.

Coffee-Made Anti-Slip: Mid-rise, performance fabric, silky smooth, stays put.

All are seamless. All are built for activewear.

It’s just about how you like it to sit.

How to Care for Subtldays

Can I tumble dry?

We don’t recommend it.

High heat can damage stretch fibres and performance fabric over time.

Air dry = longer life.

How do I wash them?

Cold wash. Gentle cycle.
Wash bag recommended.
Air dry only.

To protect the built-in spacer:

• Lay flat to dry where possible
• Avoid clipping or pegging directly onto the spacer area
• No tumble drying

The spacer is flexible and moulds to you — but like any performance fabric, high heat or pressure can affect its shape over time.

Treat them gently and they’ll keep doing their job.

Will the anti-slip or spacer wear out?

With proper care, they’re built to last.

Like all performance fabrics, avoiding high heat and rough washing will keep them in peak condition.

Shipping & Returns Information

Where do you ship from?

Melbourne, Australia.

How long does shipping take?

Australia:

Standard: 2–6 business days
Express: 1–3 business days

(Exact times depend on location.)
You’ll receive tracking as soon as it ships.

How much does shipping cost?

Within Australia, Standard shipping is free over $69! Express shipping is free over $149.

Do you ship internationally?

We don’t yet ship internationally!

What if I order the wrong size?

We offer exchanges for unworn items in original condition within our return window.

Check our size guide before ordering - each style is different and sizing can vary.

Do you offer returns?

Due to hygiene reasons, we can’t accept returns on worn underwear.

If something arrives faulty or incorrect, contact us immediately and we’ll fix it.

Your peace of mind matters.

What if they don’t work for me?

We stand behind our design.

If there’s a genuine issue, reach out — we’re a small founder-led brand and we care.

Our mission is simple: take one thing off your plate.

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