Adco Polypropylene Material – Pop-Up Folding Trailer – 12′-14′. This Pop-up Trailer duvet in lightweight polypropylene is excellent for brief time period garage. Top efficiency polypropylene insures most breathability and just about removes mildew and mold. Adco’s strap and buckle attachments save you billowing in windy places. This gives a extra customized glance. The bolstered, elasticized corners withstand tears and snags. This folding trailer duvet comes with a 2 yr guaranty.