OUTDOOR FOAM CAMPAING YOGA MATSuperior Durability and Reliability: Foam mats are virtually puncture proof, a major advantage over inflatable pads in rugged outdoor environments. This makes them highly dependable for use on rough, rocky, or twig covered ground. Water and Moisture Resistance: The closed cell structure of the foam prevents it from absorbing water or sweat, so it stays dry on damp grass or the beach and is easy to wipe clean. Some mats even include an aluminum film