32 x 40 x 3/4 Black Gator Board 6 Pack

Black surface and black core. Much stronger then foam board, but about the same weight.

Powabunga™ 32 Pack

Foam Board - Black 32x40 (25 sheets) : Office Products

Gator Board

Black 3/16 Foam Core 32 x 40 Mounting Boards

Foam Board Insulation at Menards®

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

Everbilt 32 in. x 4 ft. x 1/2 in. XPS Foam Waterproof Backer Board Underlayment for Wall Tile and Stone (5-Pack)

Foam Board Insulation at Menards®

Stalwart Interlocking Eva Foam Mat Floor Tiles 6-Pack

Basics Multiple Vacuum Compression Storage Bags