I own several pairs of Underdays. The ones made with bamboo don't feel like anything special. Yeah they're soft and comfortable -- but comparable to other brands. I do really like the design of the workout collection though. The fabric is super comfortable and fits just right. And the aesthetics are on point.
Underdays
4.7 • 3 Reviews
Underdays makes comfortable and breathable underwear for women, featuring bamboo to ensure a soft and dry wear all day long.

4.7
- 3Reviews
- 100% would recommend
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Underdays has completely changed the game when it comes to underwear! Their bamboo fabric is incredibly soft and breathable, making it feel like you’re barely wearing anything at all. I love that they’re designed to keep you dry and comfortable all day long, even during busy days or warm weather. The fit is great—supportive without being too tight—and the fabric is gentle on the skin. If you're looking for underwear that’s both eco-friendly and ultra-comfortable, Underdays is definitely worth trying. They’re my new favorite go-to for everyday wear!
4y ago
Amazing products! Fit perfectly & high quality
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What is Underdays?
Underdays makes comfortable and breathable underwear for women, featuring bamboo to ensure a soft and dry wear all day long.
In their own words
We're on a mission to give women the underwear they deserve. From inclusive sizing to purpose-driven designs, we've ensured that no one has to compromise between style or comfort any longer.
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London, U.K.
Founded
January 2019Launched
December 2021Founders
Oria Mackenzie
Amelie Salas
Certifications
OEKO-TEX
Brand initiatives
We are passionate about female health and that's why we've joined the fight for menstrual equity, donating 1% of sales to Bloody Good Period