2XU Light Speed React Compression Shorts are high-performance running shorts designed for muscle support, comfort, and cooling during intense exercise. Key features include: Compression fabric (PWX) for powerful, lightweight support. Muscle Containment Stamping (MCS) to reduce muscle vibration and improve joint protection. HeiQ Smart Temp technology for active temperature regulation, keeping you cooler as you sweat. Multiple pockets for essentials like your phone, gels, or valuables. Reflective details for visibility in low-light conditions. Flatlock seams to prevent chafing. The shorts are made from a mix of recycled nylon and elastane for a flexible fit and provide 23-25 mmHg compression to reduce muscle fatigue. The lightweight design and secure waistband make them ideal for long runs or high-intensity workouts.