Sunbrella is a Marine Grade solution-dyed acrylic fabric. Sunbrella is often found in the boating world because of its resistence to fading and ability to tolerate the abuse of the sun. Sunbrella is similar to canvas in look and appearance. It is a thinner material than our standard canvas, but it is just as strong or stronger because of what it is made from. Sunbrella will bead water so it can easily be wiped to a dry, slightly damp level. Sunbrella IS NOT machine washable. Putting Sunbrella through a wash cycle will ruin the look of the fabric. It is meant to be wiped clean with a damp cloth. Sunbrella is the perfect material to be used outdoors while keeping the traditional appearance of canvas. Click Here for more information on our material and sizing.