If you horse around with Path stock or you necessity a safe and dependable treatment for restoring H2O repellency to your synthetic horse blankets, outdoor tarps and shelter material, this 33.8 oz. bottle of Nikwax Synthetic Rug Proof reinforces fabric under the weather. It's even specifically formulated so it won't stifle GORE-TEX and other breathable fabrics. The generous 33.8 oz. capacity is more than enough to treat gear through several monsoon seasons.