Since 1977 Blue Shield Poly Laminating Have Been Manufacturing Laminated Blankets Specializing In Pool Covers, Spa Covers And Concrete Curing Blankets. To Establish And Maintain The Number 1 Commercial Cover We Designed A Cover Material That Would Withstand Constant Use On An Olympic Pool. We Are Proud To Say That This Material Is Used All Over The World And Has Proven To Be The Number 1 Residential And Commercial Laminated Cover.more...See more text