When it comes to finding the perfect sports bra, few people know the ropes better than seasoned fitness instructors. I recently had the chance to talk to a group of experts from Equinox, each with years of experience and a rigorous schedule that puts activewear to the ultimate test. They’ve tried countless styles, and they know firsthand which sports bras perform best through intense workouts, long days, and everything in between. According to them, the ideal sports bra is more than just supportive; it should be as comfortable in a high-energy class as it is during a low-key stretch.

What really matters? For these trainers, it’s all about a bra that stays secure without feeling restrictive, fabrics that breathe and wick sweat, and straps that don’t budge—even during the most challenging moves. They also emphasized details like thoughtful construction, from soft seams to supportive bands that don’t dig in. Whether you’re a regular at the gym or just starting your fitness journey, these insights are a gold mine for finding a sports bra that actually supports you. Here’s what Equinox’s fitness instructors recommend, plus a few top picks that have made the cut.

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