What is the best fabric for a sports bra?
A good sports bra fabric needs to offer support, stretch recovery, breathability, and comfort against sensitive skin. Organic cotton-elastane blends are ideal for low-to-medium impact activities because they are soft, breathable, and unlikely to cause irritation. For higher-impact workouts, merino wool blends provide excellent moisture management and stay fresher longer between washes.
Avoid sports bras made entirely from polyester or nylon, as these fabrics trap heat and odor in one of the sweatiest areas of the body. Many people experience rashes, acne, and irritation on their chest and underbust from synthetic sports bras — switching to natural fibers often resolves these issues.
ONDU features sports bras from brands like Organic Basics and Boody that combine natural fibers with enough elastane to deliver real support without compromising on skin health.
Recommended Products
BasicsLYOLYTE G-String - Powder Pink
Stays put with a no-turn-back elastic for comfort and a smooth feel. Soft elastic waistband lies flat against the skin. Flat elastic edging around the leg opening prevents riding up or cutting in. Single layer ribbed gusset adds comfort. Sleek, seamless, and smooth finish, allowing freedom of movement. Fine, light knit construction for breathability and a lightweight feel. This style runs small, size up for a more comfortable fit.
Lounge & SleepSet Giftbox - Vegan Silk Long Sleeve Sleep Shirt & Wide Leg Sleep Pants - Pearl
Give the gift of comfort with our Giftbox - Vegan Silk Short Sleep Shirt & Wide Leg Sleep Pant Available in two new colourways, Pearl and Garnet Premium fabric and design, crafted entirely with organically grown bamboo viscose Ideal year-round for slow mornings, and lazy evenings
BasicsSeamfree Crop Bra - Black
Easy pull-on style. Wireless comfort, no padding, and hook-free construction. Low-medium support, suitable for up to a D-cup. Non-adjustable, wide fabric straps for shoulder comfort. Four-way stretch for a flexible and comfy fit. Soft ribbing for added comfort and subtle detail. Seamfree design for zero fabric wastage and effortless fit. Please note that this product has recently undergone a name change and was formerly known as the Shaper Crop Bra.
BasicsPeriod & Leak Proof - Full Briefs - Light - Moderate - Black
Soft and wide, flat-ribbed waistband. High rise, full coverage for a comfortable fit. Cold machine washable for reusable period and leak care. Fast-absorbing leakproof technology for light to moderate protection. Three-layer protection keeps you fresh and dry. Designed for light to moderate period days, occasional light bladder leaks, and discharge. Absorbency: Up to 2 regular tampons, up to 2 regular pads, holds 10ml. Certified as 100% PFA-free.
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