Great quality, well packaged and easy to use. No complaints.

Great quality, well packaged and easy to use. No complaints.
Great experience with Theunderdays. Tracking worked and the package arrived in perfect condition.
Great purchase. The photos don't do it justice.
Easy to order, quick delivery and the product matches the description.
Had a question before ordering and customer service answered within a few hours. Product is great too.
Love it. Already recommended it to two friends.
You care about your skin, your wellness, your rituals. We’re pioneering care for your most intimate parts.
Prebiotics and probiotics, infused into the fabric, transferring to your skin all day. Supports your microbiome. Strengthens your skin barrier. Promotes a healthier appearance. 100% biobased. Developed in Switzerland.
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.
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 —clean, non-toxic with no harmful substances