Race the clock in this adidas HEAT.RDY running cap. Its lightweight build won't bog you down, and laser-cut ventilation makes sure that perspiration won't either. Adjust the back strap to get the perfect fit. You can flip up the brim or wear it down to block the sun rays. Made with a series of recycled materials, and at least 70% recycled content, this product represents just one of our solutions to help end plastic waste.