CHESTNUT
CALLIE BRIEF
The Callie Bikini Brief in Chestnut – Deep, Smooth & Dreamy
Meet your daily staple in a rich, grounded tone. The Callie Bikini Brief in Chestnut brings warmth to your undie drawer with its earthy hue and cloud-soft fabric. Whether you're pairing her with neutrals, nudes, or layering up for a cosy day, this tone is as flattering as it is comfortable.
She’s the same Callie you know and love — just dressed up in deep, chocolatey goodness.
Why You’ll Love It
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Higher-cut leg & gentle bikini rise
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Lenzing™ Modal that melts against your skin
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Invisible under clothing thanks to semi-seamless design
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Ethically produced, vegan and eco-packaged
Fabric & Fit
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78% Lenzing™ Modal, 17.8% Polyamide, 4.2% Elastane
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SGS-tested & OEKO-TEX® certified
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Pair with Chestnut Callie Crop for the ultimate set
Earthy and elegant, all day long.
Add to cart for the coziest, most flattering fit in your drawer.
FAQs – Everything You Need to Know
Is the Callie Bikini Brief comfortable for everyday wear?
Yes! The Callie Bikini Brief is designed for daily comfort. Made from our eco-soft Lenzing™ Modal blend, it’s breathable, lightweight, and feels barely there.
Will the Callie Bikini Brief show under clothing?
No. The semi-seamless cut and smooth eco fabric make it invisible under most outfits — even light summer fits.
Does the waistband dig in?
Not at all. The flexible waistband stays put without rolling, pinching, or digging into your skin.
Should I size up in the Callie Bikini Brief?
If you’re between sizes or prefer a softer fit, we recommend sizing up. The waistband offers support while still being gentle.
Is the Callie Bikini Brief sustainable?
Absolutely. Each brief is made with eco-certified Lenzing™ Modal and shipped plastic-free, carbon-neutral, and vegan.
Your NAT’V pieces are made with luxe, sustainable fabrics — from Organic Cotton to Lenzing Modal and Recycled Nylon. To keep them soft, supportive, and planet-friendly for longer, show them a little care:
Wash gently — Cold or warm machine wash (up to 40°C) on a delicate cycle with similar colours. This cleans effectively and protects your fabrics.
Keep it hygienic — Everyday washes at 30–40°C with good detergent are enough to kill bacteria. If you want extra freshness (like after being unwell), you can do an occasional hotter wash — just don’t make it a habit, as high heat breaks down elastic and fibres.
Use kinder detergent — Mild, eco-friendly detergent only. No bleach, no softeners, no harsh chemicals.
Skip the dryer — Line dry in the shade. Heat from dryers or direct sun weakens elastic and damages fabrics.
No ironing needed — Our fabrics are designed to stay smooth and comfy without it.
✨ Treat your NAT’Vs with love, and they’ll love you longer.
All yarns used in Natv meet the OKEO Tex Standard 100. We source from a variety of materials, including certified Lenzing Modal, organic cotton, and recycled materials. Our signature range has undergone SGS testing for forever chemicals and is certified free from them.

1.OVER BUST
Measure around the widest part of your bust.
2.UNDER BUST
Measure firmly around the body, directly under your bust.
Things To Consider
Finding your perfect fit based on your measurements is easy but there are a few things to consider when selecting your size. Firstly, do you prefer a firm or loose fit? Understanding how you prefer underwear to sit is crucial for selecting your comfiest fit. Secondly, is the style/pattern you selected suited to your body shape?
