Sand Free: Double grid design let the top layer allows sand particles, dust and dirt to pass through to the other side, while the bottom layer helps prevent sand coming up from underneath. Ingenious design features allow you to enjoy your outdoors SAND-FREE. You can add a beach towel on it to sit or lie down, then it would be more comfortable. Multiple Function: It can be used as blanket/mat or sun/rain shelter. Very suitable for all kinds of outdoor activities like beaches, picnic, parking, camping, hiking, fishing, family trips, sports events, etc. 4 anchoring loops on each corner make you have double the security on those windy days. Easy to Wash and Fast Dry: Dumping drinks will not an inconvenience as these permeate through the dry surface almost instantly. Just simply wash with a hose and it will be dry under the sun for a few minutes. Super Portable: Made of 100% PE, weight 0.7 ~ 1.3 Lbs, compact and light weight, can be folded into a small bag allows you to easy carry to go out.