NIXI Body Coni Black Leakproof Knicker — Light Absorbency

Meet the light period knickers with the most extraordinary size range in the NIXI Body collection. The Coni combines leakproof protection for light days with a super high-waisted silhouette that delivers unbeatable comfort — VPL-free, invisible under gym leggings and available in sizes 8 all the way through to 30. Whether you're at the start of your period, the end, or simply want reliable everyday protection, the Coni has you covered.

Why You'll Feel Confident in the NIXI Body Coni Knicker

How to Wear the Coni Knicker with Confidence

The Coni is the period knicker for the days when you want to feel completely at ease — light protection, maximum comfort, zero fuss. The super high waist is the real star here: it sits beautifully on the body, provides a smooth, supported silhouette and stays in place all day whether you're at your desk, on a walk or in a yoga class.

Wear the Coni on the lighter days of your cycle — the first tentative day, the last lingering day, or any day when you just want a little reassurance without the bulk of heavier protection. It's also brilliant for everyday discharge, light bladder leaks and post-workout freshness. The VPL-free design means it disappears completely under any outfit.

The Coni's size range of 8–30 makes it one of the most inclusive period knickers available anywhere — a genuinely brilliant option for plus size women who have struggled to find comfortable, well-fitting period underwear. Pair it with the Susie for medium days and the Polly for overnight protection to build a complete cycle wardrobe. Browse our full period pants & period underwear collection or explore our wider lingerie & underwear edit.

Sizing, Fit & Care Tips

Frequently Asked Questions

How much do the Coni light period knickers hold?

The Coni holds up to 10ml — the equivalent of 1–2 tampons. This makes it ideal for light periods, the beginning or end of your cycle, everyday discharge and light bladder leaks. For medium or heavy days, we'd recommend the Susie or Polly.

What makes the Coni different from the other NIXI Body styles?

The Coni's defining feature is its super high waist — higher than any other style in the range — which provides exceptional comfort, coverage and support. It also has the widest size range of any NIXI Body style, going all the way up to a UK size 30, making it a brilliant choice for plus size women seeking comfortable, well-fitting period underwear.

What size should I order?

The Coni runs true to size — if you're between sizes, size down for the most comfortable, secure fit. Available in sizes 8–30. Our UK customer service team is always happy to help with sizing — just drop us a message for a warm, honest response.

Can I wear the Coni to the gym?

Absolutely — the Coni is VPL-free and completely invisible under gym leggings and activewear. The super high waist stays securely in place during exercise, making it a comfortable and discreet choice for workouts, yoga, running and everything in between.

Ready to Feel Comfortable Every Day of the Month?

The NIXI Body Coni Leakproof Knicker is light period protection done beautifully — a super high waist, a VPL-free fit and a size range that truly includes every body, from size 8 to 30. Add your size to your basket today and discover what genuinely comfortable period underwear feels like. Shop the full period pants collection →

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