Luna menstrual underwear
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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.
You're on the list!
Meanwhile,
Details
- Absorption
- Up to 8 hours
- Capacity
- 2 tampons
- Flow
- Medium
- Sizes
- XS to XXL
Designed forWalking, yoga, Pilates, fitness, cycling, and active days.
Luna provides up to 8 hours of protection without squeezing or causing discomfort. Its ultra-stretch fabric hugs the body like a second skin, while its clean-cut finish remains invisible, even under leggings or close-fitting shorts.
Its breathable fabric quickly wicks away moisture and dries fast, for comfort that lasts all day. Its slim absorbent zone features a silver thread that helps limit odors.
Why you'll love it
- Invisible under clothingThe clean-cut finish doesn't show, even under leggings.
- Second-skin feelThe ultra-stretch knit follows your movements without squeezing.
- Breathable, quick-dryingThe fabric wicks away moisture and dries quickly between sessions.
- Odor controlA silver thread is integrated into the absorbent zone.
- No rolling, no chafingIt stays in place from the first movement to the last.
- Up to 8 hours of protectionLaboratory-tested absorption, equivalent to 2 tampons.
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
Main fabric
- 75% polyamide
- 25% elastane
Gusset
- 100% polyester*
Absorbent
- 100% polyester
Membrane
- 86% polyester
- 14% polyurethane
*contains at least 98% recycled polyester
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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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Hand washableIf you prefer, with your usual detergent.
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No tumble dryer AvoidAir dry, away from the radiator.
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No greasy soap AvoidNo Marseille soap, glycerine or fabric softener: they clog the fibres.
Delivery
Active or Perf?
Range Active
You’re looking at Luna
Sports & everyday activities
- Periods
- Comfort
- Support
Up to 8h protective
Models
- Luna
- Diane
What about the Perf range?
Periods, sweat, leaks during physical activity, ultra-breathable & anti-chafing, up to 12 hours of absorbency.
100% invisible protection









