The Starter Kit - Thong

The Underdays Starter Kit

£55

Style :

Thong Mix Brief

Size :

Size guide

XS S M L XL XXL

Product fit

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Complete the set

Meet the perfect way to begin your Underdays drawer — three of our most-loved Everyday Thongs, designed for softness that feels barely there and comfort that lasts all day.

Each pair is made from ultra-soft micromodal, a natural fabric developed with gynaecologist guidance to be pH-kind, breathable, and twice as soft as cotton. Invisible under everything, with no digging and no irritation — just a clean base you can rely on.

Every set includes our Scuba Cloud Pouch — your everyday essential for keeping favourites close, from gym to getaway. Available exclusively in our Starter Sets.




Buttery-soft, breathable fabric that feels weightless on skin.
Antimicrobial internal-lining for daily freshness and all-day comfort.
Holds its shape wear after wear — no sagging, no digging.
Adjustable rise that flatters every body and fits just right.


•92% Micromodal, 8% Elastane
•Gusset: 47% Modal, 46% Cotton, 7%Spandex
•All fabrics are OEKO-TEX certified (SH015 210990 Testex)

Finally—underwear that wins 5* reviews for washing well and holding its shape. No more holes, this style was built to last.
•Cool wash, 40° max.
•Air-dry flat in a shaded area
•Do not iron or tumble dry
•Wash in garment bag

  • We offer both Next Day Delivery and Standard Delivery

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Your underwear deserves better

You care about your skin, your wellness, your rituals. We’re pioneering care for your most intimate parts.

Twice the softness of cotton

Our underwear is made from TENCEL™ Modal—sustainably derived from trees and twice as soft as cotton. Gentle on the skin and made to feel like nothing at all.

Let your ____ breathe freely

TENCEL™ fibers are unfavorable for bacteria growth. They wick away moisture and keep you fresh through the day. Designed to help reduce the risk of unwanted infections.

OEKO-TEX Certified

OEKO-TEX® certified —clean, non-toxic with no harmful substances

Set apart by design

High Street Brand

TENCEL™  modal antimicrobial fabric derived from trees

Synthetic fabrics

Tested by real women, with over 1,000 five-star reviews

Engineered for optimal airflow and breathability

Traps moisture

A 2cm extra-long gusset for everyday protection

Soft leg elastics designed to eliminate digging in

Harsh seams

Product details