Engineered Leather Imported Premium engineered leather Multi-layer EVA foam Moisture wicking lining Ergonomic fit Lightweight, but strong The Bad Boy Training Range is designed to help fighters and athletes enhance their workout performances and recover faster. Compression fiber, fast drying fabric, 4D material, flat seams or ergonomic construction. Each Bad Boy Training piece is engineered to help you outperform each training level. How? By easing the sweat evacuation through the outer surface where it is quickly evaporated, so you stay cool, dry and light. By providing optimal pressure on your muscles for enhanced support and significant reduction of stressful muscular vibrations. By bringing more oxygen to your muscles and limiting lactic acid production for faster recovery.By avoiding any discomfort to make you focus on your goal.