Coolcalpe cooling neck shade yellow, designed to provide thermal comfort during heat exposure, made of 45% plant-based fibers and 55% acrylic polymers, offers an evaporative cooling effect for up to 4 h, lightweight, breathable and easy to activate with water, features upf 50+ sun protection to protect the neck from uv rays and a fastening system compatible with most construction hard hats, ensuring a secure and comfortable fit