Redefining Underwear Through Wellness
OUR STARTING POINT:
Everything that underwear used to get wrong
The majority of underwear is made from synthetics. Heat and moisture get locked in next to the body's most delicate skin, and the focus is on appearance on the hanger instead of comfort by 6pm.
WHAT WE CREATE
Underwear with no trade-offs
Airy fabrics, picked for how they feel ten hours into the day. A longer gusset comes standard. Nothing pinching, nothing creeping up, no visible lines. Each fabric carries OEKO-TEX® certification and contains nothing harmful.
OUR PURPOSE
The layer you notice the least
Women lead our team, and we build alongside our community. Fit and fabric are our obsession, so what sits beneath your clothes never crosses your mind, whether the day is a big one or an ordinary one.
Underwear is a daily ritual, not something you forget about.
Meet Our Brand Ambassador, Dr Brooke Vandermolen
A senior NHS OBGYN registrar, the author of Bloody Powerful and the founder of @theobgynmum, Brooke has devoted more than ten years to looking after women, from their first period through to menopause.
In her role as Brand Ambassador, Brooke applies her medical expertise across our work, guiding the products we design and the discussions we start so they mirror how women's bodies truly function.
"I choose carefully which brands I work with. As an OBGYN I see daily how unique each body is, and how much it shifts across the stages of life. Underdays rests on a simple belief: we deserve more, meaning stronger products, higher standards, and a company that truly gets the female body. That is uncommon, which is exactly why being involved makes me so proud."