
How to use the My Unds size chart?

We sew our underwear and clothing from GOTS organic cotton with a low 8% elastane content, OEKO-TEX certified cotton with 5% elastane, 100% cotton, and TENCEL™. This means that My Unds products are incredibly durable and comfortable, and this small amount of elastane also gives them a slight stretch. This is a feature we also love. This means the fabric isn't dull, but rather soft, pleasant to the touch, and adapts to the body.
Our measurements, body structure, and individual body parts all combine to create one, completely imperfect, beautiful silhouette. Remember that observing your body and knowing what suits it and what you feel best in is also key to choosing the right size. You might have a bra size listed as 85D, but our sizing chart might be a completely different size than someone who usually wears the same bra. And that's okay! Furthermore, our bodies change; breasts grow or shrink, as do bellies and thighs. That's why we've created a guide so that each of you can find the right size for yourself. We also invite you to check out our lookbook , where you'll see how our products fit. Below, we've also included the flat measurements of our clothes.

What do our clients say?
See what sizes our customers have chosen and how they rate the fit. Their opinions will help you find your perfect size. Below, we also share photos and selections from our colleagues and customers. Consider them a guide to living bodies – different, real, our own. We cordially invite you to our brick-and-mortar boutique at Al. Zjednoczenia 11 in Warsaw (slou.pl), where you can try on and chat with us in peace.
Adrianna
circumference under the bust: 75 cm, bust: 86 cm
She chose size S in Rui ribbed bralettes
and Mia
Fit: perfect
Agata
circumference under the bust: 78 cm, bust: 93 cm
She chose size M in Rui's bralette
Fit: a little loose
Magda
Circumference under the bust: 69.5 cm, at the bust: 77 cm
She chose size XS/S in Rui Flare and Rui bralettes
Fit: very tight
Małgorzata
Circumference under the bust: 70 cm, at the bust: 88 cm
She chose size S in the Maya bralette
Fit: slightly loose, almost perfect
Dąbrówka
Circumference under the bust: 78 cm, at the bust: 89 cm
She chose size M in the Rui ribbed bralette
Fit: good, better before period
Ksenia
Circumference under the bust: 92 cm, at the bust: 104 cm
She chose size XL in Via bralettes
Fit: fitted
Dominika
Circumference under the bust: 72 cm, at the bust: 83 cm
She chose size XS in Rui and Mia bralettes
Fit: Well-fitting
Natalia
circumference under the bust: 79 cm, bust: 94 cm
She chose size M in the Mia bralette
Fit: good, but could be a little deeper
Specially tailored