At G cup, most mainstream activewear simply doesn't provide adequate support, and the difference between a sports bra that works and one that doesn't comes down to construction. Look for deep, separated cups, a very firm band, and straps wide enough to carry the weight comfortably through a full session.
Matching the bra to the activity
High-impact styles — running, HIIT and jump-based training — use rigid encapsulated cups and a firm band; medium-impact styles suit the gym, cycling and reformer; wirefree and low-impact styles work for yoga, walking and rest days. At G cup the band does most of the work, so it should feel firm — if the straps are taking the load, the band is too loose.
Brands that work at G cup
Panache Sport and Elomi Energise lead at G cup, with the deep cups and firm bands the size needs. Shock Absorber and Anita Active are the wirefree options. Browse the full sports bra range across all cup sizes, or see G cup bras for everyday styles.
