Rumble Boxing – Time to rumble in the midtown jungle—this sleek basement studio delivers high-energy vibes with a dark boxing room, a real ring, and space for both solo and personal training. It’s a boutique fight club meets nightclub, with killer beats, low lighting, and clear, accessible instruction that makes even first-timers feel like pros. Sassy’s midday class was fast, sweaty, and left us feeling fierce and fabulous. Don’t forget your indoor shoes and hand wraps, but if you do, their black-and-white striped ones are $10 and surprisingly stylish.