Period Underwear
Selene Black Nightwear Panties
Store rating · 23 reviews across Kiri$328.00
FALLSALE: 15% off one-time purchases until 30 November. Combines with free Hong Kong shipping; cannot combine with other product or order discounts.
Details
Kiri's Selene Black high-waist panty — designed with full padding coverage all the way to the back for maximum protection while you sleep. Heavy absorbency in soft, seamless fabric that stays put all night. Selene Black is a timeless, sophisticated shade the founders chose for its quiet confidence. Heavy absorbency, sizes XS–XL. Wear it, wash it, love it — then do it all over again. Designed in Hong Kong with love.
Size & material: sizes XS–XL (waist 58–82 cm). Body 70% nylon, 30% spandex; absorbent pad top layer 84% modal, 8% seaweed fibre, 8% spandex.
How to wear
All night — or all day. Wear them on their own and forget setting alarms to change a tampon, or waking to check the sheets. Cut with full back coverage to absorb the heaviest flows lying down. First time? Test the waters towards the end of your period when your flow is lighter — they're extremely absorbent and work at any hour.
Absorbency & fit
Heavy absorbency: 75 ml — about 8.5 regular tampons / 15 teaspoons. High-waist rise, sizes XS–XL. Note the nightwear fits tighter than the daywear pair, so your size may differ between styles; if you're between sizes, we recommend going down a size.
Care
Rinse under cold running water before a cold machine wash. Line dry. Do not bleach, soak, add softener, tumble dry or iron. Cared for well, one pair lasts years.
The science
Four layers of leakproof technology trap and lock liquid inside water-resistant, moisture-wicking materials: an outer shell, a stain- and leak-blocking layer, an absorbent core holding up to 8.5 tampons' worth of flow, and a barrier that keeps you comfortable. No dioxin, chlorine or rayon.
FAQ
Will it hold all night? Yes — most sleepers go 8+ hours on night one. Side sleeper? The padding runs gusset to waistband, front and back.
More questions
How many pairs do I need?
Most people are covered with 3–5 pairs: day pairs, a nightwear pair, and a wash mid-cycle. Bundles are the cheapest way to build the set.
How do I change them when I'm out?
Bring a spare pair and a small wet bag — that's the whole system. Rinse the used pair when you get home. Most days you won't need to: nightwear's 75 ml covers a long day out, and plenty of people plan a heavy day around one change at home rather than one in a public bathroom.
How fast do they dry?
The fabric is quick-drying — line-dried overnight, they're ready by morning, which is what makes a 3–5 pair rotation work.
Reviews for this product
Pairs well with
Size guide
Two measurements are all you need — waist and hip. If you're between sizes, the rule depends on the piece: size down for panties, size up for bras.
Panty sizes
Between sizes? Size down. The gusset has to sit flush against you to work, and a waistband with slack lets it shift.
| Size | Waist | Hip |
|---|---|---|
| XS | 58–62 cm | 80–84 cm |
| S | 63–67 cm | 85–89 cm |
| M | 68–72 cm | 90–94 cm |
| L | 73–77 cm | 95–99 cm |
| XL | 78–82 cm | 100–104 cm |
Bra sizes
Between sizes? Size up. The four-way stretch takes up any slack, while a band that is too tight will dig in.
| Size | Asian sizes | US/UK sizes |
|---|---|---|
| XS | 65C · 70B · 75A | 30C · 32B · 34A |
| S | 70C · 75B · 80A | 32C · 34B · 36A |
| M | 75C · 80B · 85A | 34C · 36B · 38A |
| L | 80C · 85B · 90A | 36C · 38B · 40A |
Not sure of your bra size? Measure yourself at home in two minutes.
Still unsure? Email hello@kirijourney.com or WhatsApp +852 5936 8419 — we're happy to help you find your fit.
