PERIOD STRESS UNDER A HIGH-CUT SWIMSUIT? Hard pass.
UnderSwim G-Fit is period-proof swim underwear designed to disappear under high-cut swimsuits, racing suits and bikini bottoms.
Its seamless high-leg cut gives you a discreet layer beneath the swimwear you already want to wear.
Up to 15 ml absorbency is equivalent to 2 regular pads or tampons, without bulky seams or a waterlogged feel.
A water-resistant outer helps keep pool and sea water out. Four thin absorbent layers lock menstrual flow in. No wet-nappy energy.
- Invisible under high-cut swimwear, including one-piece, racing and bikini styles
- Seamless high-leg fit in Black, Neutral or Navy
- Up to 15 ml absorbency, equivalent to 2 regular pads or tampons
- Water-resistant and chlorine-resistant
- Compliant with Swimming Australiaโs Inclusive Swimwear Policy
- USA Swimming compliant for Age Group Competitions under Rule 205.10.1
- Swim England compliant
- PFAS-free and OEKO-TEXยฎ STANDARD 100 certified for safety
- Girlsโ sizes G10-12, G12-14 and G14-16; womenโs sizes W10-W18
UnderSwim G-Fit is the discreet period layer for swimmers who want the protection underneath and the swimwear on show.
Compare UnderSwim OG and G-Fit
Wear and care instructions
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