The Lingerie Thong

💸 GET A £5 VOUCHER WHEN YOU LEAVE A REVIEW

•Lingerie for everyday wear

•Silky soft

•Stretch mesh that moves with your body
•Bamboo gusset to wick moisture
•Guaranteed no digging in
•Quality ensured for regular washing

Black

Size

I'm dropping a hint...

Unsure of your size?
•Free 30-day returns. (T&Cs apply)
•Orders containing items on sale or free items are not eligible for returns.

•Mesh: 80% nylon, 20% elastane
•Silky Microfibre: 80% nylon, 20% elastane
•Gusset: Bamboo, 10% elastane
•All fabrics are OEKO-TEX certified

To get the most out of your underwear we recommend following these steps:
•Cool wash, 40° max
•Air-dry flat in a shaded area
•Do not iron or tumble dry

•We offer both Next Day Delivery and Standard Delivery
•London Same Day & Instant for only £1.99 over £30
•Free 30-day returns. (T&Cs apply).
•Items shipped outside the UK may be subject to import duties and taxes applicable to your country or country you are shipping to. Customers are solely responsible and liable for any duties or VAT that are specific to their country.

True to size

Check out our

Add 6 for 15% off

The Tank

The Everyday Thong

The Lingerie Thong

The Workout Thong

Alfie x Underdays Capsule Collection

Where the effortless feminine meets the everyday luxury.

We've partnered with Paris-based luxury label ALFIE to create a limited edition capsule set of elevated summer essentials.

A collection with a “borrowed from the boys” feel, this launch celebrates ALFIE’s signature boxer shorts and Underdays’ solutions-driven design—all crafted from a luxury deadstock cotton sourced in Paris.

SHOP NOW

Reviews

Refer your friends & get £10 off your next order

Make them feel just as good as you do—give your friends 20% off and you'll get £10 off your next order when they shop with your link.

Get rewarded 🎁

Underdays + You Underdays + You Underdays + You Underdays + You Underdays + You Underdays + You Underdays + You Underdays + You Underdays + You Underdays + You Underdays + You Underdays + You