The XION Protective Gear Jacket PRO-EVO is designed to wear as an undergarment. The D3O pads are removable so you can choose which pads you want to use. The waist belt has elastic straps to adjust to the body circumference. The D3O pads cover and protect the forearms, elbows, shoulders, back, chest and side of the ribcage. The elbow and shoulder areas are also covered with a durable abrasion resistant fabric and the main fabric of the garment is a strong, 4-way stretch & breathable fabric of high-quality, specifically designed for the sports industry.