Welcome to SlipIn

Underwear subscription that suits your life.
Comfort, style, and confidence —
delivered monthly.

Self care has never been easier
Only €12.99 per month!

Red bikini bottom with black and white zebra-print straps.
Black lace women's underwear on a beige background
Burgundy slip on beige background
Sheer burgundy women's underwear on beige background
Sheer black lace panty with polka dots and ribbon bows on beige background
Zebra print bikini bottom on beige background
Brown scalloped-edge thong on beige background
Black lace panties with cherry embroidery
Dark blue ribbed slip on beige background
Brown underwear with triple gold ring accents on the side, displayed on a beige fabric background.
Black lace ruffled women’s panties on a beige background.
Leopard print women's panties on a neutral background.
Gray women's underwear on a white background.

*models shown above represent 5% of possible options

  1. Subscribe — Choose your size to proceed (S to XL)

  2. We curate & deliver straight to your mailbox within 2-3 days

  3. Enjoy your new favourites — a surprise gift to yourself, because you deserve it!

How It Works

Pink lilies beside sheer burgundy lingerie on white background.

Monthly Subscription — €12.99
Free Delivery | Cancel Anytime

Reviews

“Three days after subscribing, the surprise box was already with me. Excellent underwear, very pleasant to the touch—now I don’t have to waste time searching for comfortable briefs. Thank you! P.S. A special thanks for the cute little gift!”
— Elena V
“Ik wou dat ik eerder van deze service had gehoord! Ik kan niet wachten op mijn nieuwe slips. Ik vind het fijn om elke maand nieuwe slips te krijgen, ik hoef me geen zorgen te maken dat ik op zoek moet gaan naar het juiste ondergoed, ze komen één keer per maand met de post en ik heb altijd veel opties in mijn garderobe om uit te kiezen.”
— Natasja P
“Super quick delivery and great product! I love how it feels on skin. The thought put into the packaging made me smile, thank you :)”
— Marina R

Why subscribe to SlipIn?

  • Underwear — something we all need but rarely prioritize. It’s easy to let the basics slide, get stuck between endless options and the same old pairs. Before you know it, you’re cycling through pieces that no longer feel or fit quite right. Let us simplify the shopping experience for you.

  • Join the community of women who’ve made their underwear drawer a source of confidence, not stress.

    With seamless, automatic deliveries, we take the guesswork out of shopping, ensuring your top drawer is always stocked with stylish, comfortable pieces — it’s time to elevate your everyday essentials.

  • Why stick to the same styles when your underwear can be as varied as you are? With SlipIn, each month brings a new surprise: whether you prefer the basic style, an elegant touch or dare to add a hint of sparkle - we've got you covered. All without ever compromising on comfort or quality. And always maintaining the same classic shape we all love.

  • Sit back & relax while we handpick tested quality slips for you. Your first piece is almost on its way!

    Embrace the excitement of unboxing your new favorites. Enjoy having underwear perfect for workouts, romantic evenings, cozy pajama days, and more.