American Easel Flat 1/8" Tempered Watermedia Hardboard, No Cradle.

These hardboards come with an absorbent, textured, cold-press type surface. It's extremely easy to adjust the texture with a quick sand using a medium or finegrit sandpaper if you would like a smoother, hot-press surface.

Watermedia Boards are absorbent like watercolor paper but allow lots of re-working and wet layers.