***** Best Quality Guranteed. *****Completely blank poly foam sleeves - no brand logos! *****Perfect for sublimation, heat transfer, screen printing, and fabric markers. *****Ideal for your next party or event. Arrives in a plain white gift box. *****100% GUARANTEED. is a U. S. Veteran owned family business near Lake Tahoe. *****Fabric Details - Scuba knit polyester fabric on polyurthane foam insulator.