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Ordering Period Underwear Online in Hong Kong: Sizing, Exchanges and Delivery

Short answer
Measure your waist and hips and use Kiri's size guide; if you are between sizes, size down. Your first order includes one free size exchange on unworn items within 14 days, and shipping is free over HK$450 to Hong Kong and Mainland China.
Buying underwear online without trying it on first is a reasonable thing to hesitate over — it's the single biggest reason first-time buyers stall out on the cart page rather than the checkout button. The friction isn't really about the product; it's about not knowing what happens if it doesn't fit. Here's the practical version of that answer.
Getting the size right the first time
Kiri's sizing runs across waist and hip measurements rather than dress sizes, since fit around the absorbent gusset matters more than overall garment size. Our size guide walks through exact measurements for each size band, and the general rule is: measure rather than guess, and size down if you're between two sizes — the gusset has to sit flush against you to work, and a waistband with slack lets it shift out of place. If you have sensitive skin, our guide on what to know before you switch covers fabric and fit considerations too.
If it doesn't fit
Exchanges are straightforward. On your first order you're covered by our First-Pair Fit Guarantee: one free size exchange within 14 days, on unworn items. Our returns and exchanges policy covers the exact process, but the short version is: contact us with your order number and the size you need instead, and we'll sort the swap. Not sure if your size is actually wrong or just unfamiliar? Here's how to tell. This is worth knowing before you order, not after — the exchange process exists specifically because getting sizing exactly right on a first order isn't guaranteed, and it shouldn't need to be for you to try the product.
Delivery within Hong Kong
Orders placed within Hong Kong are processed and shipped locally, with delivery typically completed within a few business days of dispatch. You'll receive tracking information once your order ships, so you're not left guessing — full details are on our shipping policy.
What to expect on your first order
Starting with one or two pairs rather than a full rotation is a reasonable way to test fit and comfort before committing to more. If daywear and nightwear both interest you, our bundle sets are usually the more economical way to try both at once rather than ordering separately later. Worn and cared for properly, a single pair lasts around two years — so testing fit with one or two pairs first is a low-risk way to start. You can see the whole period underwear range before deciding.
Questions before you order
If anything about sizing, absorbency, or delivery timing isn't covered here or in the size guide, our FAQ has the fastest answers before you place an order, not just after.
Want to check the fabric before you order?
You can see and feel our period underwear and Every Day Bras at our display inside Blomstre, Shop 401, 4/F C & D, Hopewell Mall, Wan Chai. It's open Monday to Sunday, 12pm to 9pm, with no appointment needed. Directions and details.
Keep reading
Frequently asked questions
What if my period underwear doesn't fit?
Our First-Pair Fit Guarantee gives one free size exchange on your first order, on unworn items within 14 days of delivery. Email hello@kirijourney.com with your order number and the size you need.
Is shipping free?
Yes, on orders over HK$450 to Hong Kong and Mainland China.
How do I choose my size without trying it on?
Measure your waist and hips with a soft tape and match them to the size guide rather than using your usual clothing size. If you fall between two sizes, size down.
Ordering & delivery
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