A super lightweight fly rug for protection during the hot days. Innovative antibacterial and antistatic micromesh ensures that the blanket feels like a second skin and is optimally breathable. It regulates the horse's temperature while providing a solid barrier against flies, mosquitoes and horseflies. The extra-large belly flap with 3 closures protects the belly while ensuring that the blanket always stays in place, while the long tail flap protects the tail and hind legs. The front closure of the rug has a slight angle that distributes the pressure on the horse's chest and therefore reduces it. The patented independent side part at the bottom of the rug provides a break in the hemline, increasing the horse's freedom of movement and reducing pressure.