Discover boxing gyms in Renton, WA through Nusu. Find programs ranging from fitness boxing for cardio and conditioning to technical training for competition. Trainers teach proper stance, footwork, punch combinations, and defensive techniques through heavy bag work, speed bag drills, mitt work, and sparring. Classes accommodate all levels from beginners learning fundamentals to experienced fighters preparing for competition. Read authentic member reviews to find gyms with knowledgeable coaches, quality equipment, and the right atmosphere for your goals.