The Secret Santa Cracker
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- Free exchanges
- Free delivery from 49 €
- 60 days to try
- Pay in 3, interest-free

Size Guide - Microfiber Collection
Our models fit true to size. Please note that the microfiber material of our panties is shaping and tends to stretch after the first wash.
Therefore, we recommend choosing the size you usually wear.
Need advice? Unsure about the size?
Contact our customer service by email at contact@smoon-lingerie.com.
| Size | Clothing size | Waist | Hips |
|---|---|---|---|
| Women | |||
| XS | 34 | 56-62 cm | 84-88 cm |
| S | 36 | 62-68 cm | 88-92 cm |
| M | 38 | 68-74 cm | 92-96 cm |
| L | 40 | 74-80 cm | 96-100 cm |
| XL | 42 | 80-86 cm | 100-104 cm |
| XXL | 44 | 86-92 cm | 104-108 cm |
Swipe the table to see every measurement
How to measure
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WaistAt the narrowest point of your torso, above the navel.
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HipsAt the fullest point, keeping the tape measure horizontal.
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Between two sizes?Go for the larger one.

Details
- In the crackerRed Séléné
- FlowMedium
- Capacity2 tampons
- SizesXS to XXL
L's Secret Santa ideaA Séléné panty, our bestseller sold for €35 each, tucked into a Christmas cracker for €19.99.
What if your Secret Santa made someone truly happy this year? This pretty Christmas cracker hides a red Séléné period panty: an original gift that combines comfort, peace of mind, and practicality. A thoughtful way to care for the person receiving it, long after the holidays!
An everyday essential that’s washable and reusable, and certainly won’t end up at the back of a drawer.
How it works
- 01Choose her sizeHer usual underwear size, from XS/34 to XXL/44. Size guide
- 02Slip it under the treeThe cracker is already gift-wrapped.
- 03Crack the redShe opens it to discover her red Séléné.
What’s inside
Séléné is our medium-flow period underwear. Its absorbent gusset combines three technical fabrics: a moisture-wicking fabric that lets fluid pass through to keep skin dry, an absorbent fabric that holds it, and a waterproof fabric that protects clothing. It holds the equivalent of 2 tampons, 2 pads, or 1 cup.
- An unexpected giftA cracker to open, with a real piece of lingerie inside.
- Useful every monthIt replaces a pad, tampon, or cup on medium-flow days.
- Dry and comfortableThe moisture-wicking fabric keeps skin dry, and the fit is barely noticeable.
- A gift that lastsWashable and reusable, it will be with her for years to come.
- Red like ChristmasOur Séléné in bright red, from XS to XXL.
- A Séléné for €19.99The same panties as Séléné, sold for €35 each.
The gift that won’t end up at the back of a drawer.
Manufacturing & environmental impact
- Design By our textile engineer Paris
- Knitting The yarns are knitted into fabric France, Italy
- Dyeing and printing The fabric gets its colour or print France, Italy
- Making up Cutting, sewing and finishing Tunisia
- OEKO-TEX® STANDARD 100 certified, certificate no. CQ 1285/1
Composition & maintenance
Matière principale
- 80% polyamide
- 20% élasthanne
Fond
- 51% hydrophilamide
- 42% polyamide
- 7% élasthanne
Absorbant
- 100% polyester
Membrane
- 86% polyester
- 14% polyuréthane
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Hand washableIf you prefer, with your usual detergent.
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Cold wash or 30°CIn the machine, in a laundry bag, with the rest of your wash.
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Rinse after useIn cold water, until the water runs clear.
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No greasy soap AvoidNo Marseille soap, glycerine or fabric softener: they clog the fibres.
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No tumble dryer AvoidAir dry, away from the radiator.
No white vinegar: it loosens the heat bonding of the absorbent area. For a stubborn smell or stain, use a little bicarbonate of soda instead.
Delivery
We answer
your questions
Que contient le Secret Santa Cracker ?
Une culotte menstruelle Séléné rouge, notre modèle pour les flux moyens, dans la taille que vous choisissez. Le cracker sert d'emballage cadeau : il se glisse sous le sapin tel quel.
Quelle taille choisir quand on l'offre ?
Prenez sa taille habituelle de culotte : Séléné va du XS/34 au XXL/44. Pour comparer les mesures, consultez notre guide des tailles.
À qui s'adresse la culotte Séléné ?
Séléné est conçue pour les flux moyens : une perte de sang qui demande moins d'une protection (serviette, tampon ou cup) toutes les trois heures. Elle retient l'équivalent de 2 tampons, 2 serviettes ou 1 cup.
Comment l'entretenir ?
Après usage, rincez-la à l'eau froide jusqu'à ce que l'eau soit claire, puis lavez-la à la main ou en machine, sans adoucissant. Laissez-la sécher à l'air libre, jamais au sèche-linge ni au fer. Notre guide d'entretien donne tous les détails.
Une idée de Secret Santa originale
Le Secret Santa Cracker de Smoon revisite le cracker de Noël : à l'intérieur se cache une culotte menstruelle Séléné rouge. Une attention qui change des cadeaux habituels, à moins de 20 €, et qui sert bien après les fêtes.
Pourquoi offrir une culotte menstruelle ?
Parce qu'un bon cadeau est celui dont on se sert vraiment. Lavable et réutilisable, la culotte menstruelle remplace la serviette, le tampon ou la cup les jours de règles, cycle après cycle, pendant plusieurs années.
Séléné, la culotte menstruelle flux moyen
Séléné réunit trois matières techniques : une matière drainante, une matière absorbante et une matière imperméable. Elle retient l'équivalent de 2 tampons et existe du XS/34 au XXL/44.



