There is no denying the performance boost that comes from a good-looking activewear set. Whether you are lifting heavy, hitting the pavement for a 5k personal best, or flowing through a weekend Pilates class, the best activewear needs to meet a lot of requirements: sculpt your silhouette, support high-impact movement, and pass the squat test every time.

Thanks to major innovations in technical textiles, today’s best activewear sets merge second-skin comfort with high-performance function. Think buttery, moisture-wicking four-way stretch, anti-chafing seams, and targeted compression fits that transition effortlessly from high-intensity training to off-duty streetwear.

To help you navigate the crowded sportswear market, we’ve rounded up the best activewear brands online and on the UK high street.…