Lou – Seamless Period Thong, Light Flow

For the days that aren’t really your period — but aren’t nothing either. Lou is a seamless thong, designed for the days you’d otherwise waste a pad on: the spotting before your period starts, everyday discharge, and the last two days when your flow has almost stopped. It holds 15 ml, the equivalent of about 1.5 tampons. It’s a thong, so it does what a thong does — disappears completely, under jeans, under a fitted dress, under anything. No seams, no edges, nothing showing through. Most people wear Lou alongside a heavier style: Mathilde or Liv on days one and two, then Lou for everything on either side. It also works as backup on cup days. Available in sizes XS to 2XL. Materials Outer: 65% nylon, 35% elastane Absorbent core: TPU and microfiber Lining against your skin: organic cotton OEKO-TEX® Standard 100 certified — certificate 2026OK1834, issued by AITEX Lab-tested · 25 ppb PFAS detection limit Designed in France since 2017 Care Rinse in cold water right after wearing — cold water first, always. Machine wash at 86°F (30°C) with the rest of your laundry. No fabric softener. Air dry. Never tumble dry. Size guide Measure your hip at the fullest point. If you’re between sizes, size up. Louloucup size US size Hip (in) Hip (cm) XS 2 33–34.5 84–88 S 4 35–36.5 89–93 M 6 37–38.5 94–98 L 8 39–40.5 99–103 XL 10 41–42.5 104–108 2XL 12 43–45 109–114 Our underwear fits true to size. If in doubt, measure at the fullest point.