Without boxing gloves, there would be nothing to stop competitors from rudely slapping each other in the face or folding whimsical origami models to impress the judges. Master the many uses of boxing gloves with today's Groupon: for $48, you get four boxing lessons at Mendez Boxing (up to a $100 value). Because the gym keeps an open schedule, athletes of all skill levels drop in for coaching any time during business hours.

With more than 60 years of fight experience between them, Mendez Boxing's Francisco Mendez and Gregorio Vincenty sculpt bodies and sharpen the reflexes of men and women of all boxing aptitudes. Up to four men and women metamorphose into stinging bees during open-level classes, emerging after each one-hour session dotted in sweat from intense cardio sessions and coated in pollen from combative lilies. Over four sessions, sweet scientists cultivate strong cores, nimble feet, and powerful punches under the close scrutiny of watchful trainers, who correct unstable stances or cheer droopy biceps with techniques culled from careers as fighters and trainers. Trainees can flip jump ropes to boost heart rates, or sheathe their fists in the gym's gloves and signature brioche loaves as they pummel training pads held by instructors. Hand wraps necessary for training may be brought from home or purchased at the club for $10.

Painted white and draped in bright flags and posters, the tidy club provides a clean space in which to invigorate bodies bored by treadmills and minds weary of counting reps. Although the facility lacks air conditioning, fans and the enormous butterfly wings that sprout from punching bags create cool breezes around the central sparring ring.

Though Mendez Boxing features a discount for first-time clients, this Groupon still offers the best deal available.