Girls Underwear FAQ

How do Deux par Deux and Mayoral girls underwear sizes compare?

Deux par Deux uses paired sizes: 2/3, 4/5, 6/7, 8/10 and 11/12. Mayoral briefs come in single sizes from 2Y to 16Y in two-year steps, so girls who have outgrown 11/12 can move to Mayoral. If she is between sizes, sizing up usually gives more room to grow.

What is the difference between boyshorts and briefs?

Deux par Deux boyshorts are a shorts-style cut listed as full coverage, with an elastic waistband, and many come in 3-packs. Mayoral briefs come in 4-packs, with elastic at the waist and leg openings and a small bow at the front. Some girls prefer boyshorts under skirts and dresses, while others like the classic brief shape.

When is a girl ready for a training bra?

There is no set age; many girls start when they want more coverage under school tops or gym clothes. Mayoral 2-piece training bra sets are sized 8Y to 16Y and are pull-on racerbacks with no hooks and a wide underband, made of 95% cotton and 5% elastane.

What fabric is girls underwear made of here?

Deux par Deux boyshort packs and tank undershirts are listed as a jersey of 95% cotton and 5% elastane. Mayoral briefs and training bras are also listed as 95% cotton with 5% elastane.

Do you have undershirts to wear under dresses?

Yes. Deux par Deux tank undershirts have slim straps and white binding at the neckline and armholes for a smooth edge under blouses and girls dresses, in sizes 2/3 to 11/12. Deux par Deux recommends a cold delicate cycle with no tumble drying, bleach or ironing.

Do you ship Girls Underwear to Canada and the US?

Yes. Every order ships from Canada, usually within 1–3 business days, with an estimated delivery time of 6–10 days within Canada and 8–15 days to the US. Shipping is free on orders of $160 CAD or more in Canada and $160 USD or more in the US; smaller orders ship for a flat $15.95 CAD or $10.95 USD. US shoppers see prices in US dollars, and US orders are subject to customs duties and taxes, which are paid by the customer. See our shipping policy for details.

Can I return Girls Underwear items?

Yes, within 14 days of receiving your order. Contact us before sending anything back; items must be unworn and unused, with tags and original packaging, and return shipping is paid by the customer. Full details are in our return and refund policy.