Bought six of these to both protect our foyer AND provide traction for our elderly dog. I've machine-washed the smaller ones and air-dried them with no degradation of the non-skid surface on underside. Perfect for my needs. Easy to shake out and vacuum both sides (they tend to start drifting if dirt gets underneath them). Wouldn't recommend it you're looking for thick and "permanent" decor rugs; these are more indoor/outdoor items. Would buy again.