Collection: Boy Briefs

Kids Innerwear in TENCEL™ Modal — Soft, Breathable & Anti-Rash

TCUP innerwear is made from soft, breathable TENCEL™ Modal fabric — gentle on skin, naturally smooth, and built for all-day comfort through school, play, and everything in between. The anti-rash waistband sits flat with zero pressure marks, while the moisture-wicking fabric keeps kids fresh and dry. Shop briefs, trunks, hipsters, and boyshorts in sizes from 4-5 to 8-9 years, in packs of 3, 5, 7, and 9, with a free DIY sticker kit included in every pack.

FAQs

What fabric is TCUP innerwear made from?


TCUP innerwear is made from TENCEL™ Modal, a soft, breathable fibre that's gentler on skin than regular cotton. It's naturally smooth, sustainably sourced, and designed to stay comfortable through a full day of school and play.

Will the waistband leave marks or dig in?


No. The waistband is engineered to sit flat against the skin with zero pressure marks, even after hours of wear — useful for kids who are active all day or sit for long stretches at school.

What age and size range is available?


Sizes are available across 49-53cm (4-5 years), 54-58cm (6-7 years), and 59-63cm (8-9 years). Check our size chart before ordering, since fit varies slightly by child.

Do these come in multi-packs?


Yes. Briefs and hipsters are both available as Pack of 3, 5, 7, and a 9-piece Mystery Pack for parents who want to stock up at a lower per-piece cost.

Is the fabric good for sensitive skin or rashes?


TENCEL™ Modal is naturally smooth and breathable, which helps reduce friction and chafing — a common cause of rashes in regular cotton or synthetic underwear. The moisture-wicking fabric also helps keep kids dry, reducing irritation from sweat.

What comes in every pack besides the underwear?


Every pack includes a free DIY sticker kit, so kids can personalise their own plain underwear instead of being stuck with prints they'll outgrow.