The Thong Starter Pack

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A thong for every occasion. Featuring the Everyday Thong in White that lends daily comfort, the Workout Thong in Black especially designed for activity plus the Lingerie Thong in Espresso for expressive style that’s wearable too.

Size

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The Everyday Thong
•Second-skin softness
•Breathable fabric that offers 10-hour freshness
•Bamboo gusset to wick moisture
•Adjustable rise
•Guaranteed no digging

The Workout Thong
•Minimal VPL
•Fast-drying, sweat-wicking technology
•Antimicrobial bamboo gusset
•Four-way stretch
•Made from 84% Recycled Nylon
•Contrast stitching detail

The Lingerie Thong
•Silky soft
•Stretch mesh that moves with your body
•Bamboo gusset to wick moisture
•Guaranteed no digging
•Quality ensured for regular washing

*All sale items are not eligible for returns.
The Everyday Thong
•89% Micromodal, 11% Elastane
•Gusset: 90% Bamboo, 10% Elastane
•All fabrics are OEKO-TEX certified

The Workout Thong
•84% Q-NOVA® Recycled Nylon, 16% Elastane Lycra
•Gusset: 90% Bamboo, 10% elastane
•All fabrics are OEKO-TEX certified

The Lingerie Thong
•Mesh: 80% nylon, 20% elastane
•Silky Microfibre: 80% nylon, 20% elastane
•Gusset: 90% 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 Next Day Delivery and Standard Delivery
•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.
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The Lingerie Thong Set
The Lingerie Thong Set
The Lingerie Thong Set
The Lingerie Thong Set
The Lingerie Thong Set
The Lingerie Thong Set

The Lingerie Thong Set

white
white
white
white
white
white
navy
navy
navy
navy
navy
navy
black
black
black
black
black
black
dusty pink
dusty pink
dusty pink
dusty pink
dusty pink
dusty pink

The Everyday Thong

black
black
black
black
black
black
espresso
espresso
espresso
espresso
espresso
espresso
blue
blue
blue
blue
blue
blue
magenta
magenta
magenta
magenta
magenta
magenta

The Lingerie Thong

black
black
black
black
black
black
dusty pink
dusty pink
dusty pink
dusty pink
dusty pink
dusty pink

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.

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