Save to my brands

HIIT

HIIT is a women’s activewear label carried by ASOS, rooted in performance-focused design with a fashion-forward edge. The brand specializes in practical gym kit and everyday athleisure, offering a full lineup of leggings, sports bras, tops, shorts, and run-ready accessories that move with you through HIIT training and beyond. Known for clean lines, supportive fits, and moisture-wicking fabrics, HIIT sits in the ASOS portfolio as an accessible, trend-aware option for shoppers who want gym-leaning pieces that still read casually off duty. Originating as an independent brand, HIIT was acquired by ASOS as part of its strategy to expand its own-brand activewear, cementing its position in contemporary performance fashion.

Browse by Category

Filter by:
Previous
Next

Frequently Asked Questions About HIIT

HIIT faq

What is HIIT as a fashion brand?

HIIT is ASOSs dedicated activewear label. Born from the Arcadia Group acquisition in 2021, it serves up performance-forward pieces that move with you from gym to street.

What does HIIT offer?

A seriously good collection of womens activewear including leggings, shorts, sports tops, gym bras and the occasional accessory to elevate your workout and your wardrobe.

What design cues define HIIT pieces?

Clean lines, performance fabrics, and thoughtful details like branded tape, mesh panels and sport bra silhouettes that stay sleek whether you are lifting or lounging.

How should I style HIIT for real life?

Treat HIIT as streetwear: pair high rise leggings with a cropped tee and a sharp blazer, or mix a sculpted sports bra with denim and platform sneakers for a city-ready workout look.

How do I pick the right HIIT size?

Product pages show size options and a guide; if you are between sizes, check the fit notes and customer reviews, then use easy returns if needed.