Tough 1 600D Waterproof Poly Miniature Turnout Blanket 600Denier Poly -Medium Material Strength- Not Recommended for horses that bite, chew or rub on blankets or for horses turned out with a companion or in a group. Materialmay tear or rip if caught ona nail, rough fencing or thorns from bushes. 250g Polyfill- providesmedium warmth andprotection from wind and rain. 210Denier Poly Lining - Prevents rubbing and helps to keep the coat shiny while preventing hair, shavings, and straw from sticking to the inside of the blanket. Waterproof - coated outer shell with taped seams and seamless spine repels water to keep your horse dry. Breathable - Designed to allow moisture vapor to pass wick away from the horse and preventing sweating while retaining body heat and repelling outside coldness.