MATERIAL: Made of polyester fabric, water-resistant and portable, this mat bag will protect your wetsuit from sand, dirt, debris, prevent damp or smelly odor in your car or travel bags, and keep the wet suits inside a secured bag for clean and dry transport. PRACTICAL MULTI-USE: Great as a waterproof changing mat for changing which doubles as a dry bag for wetsuits, swimsuits, towels, ski boots, scuba diving, surfing, kayaking, beach swim, bike ride, running and other outdoor sports. It does a great job as a seat cover once youre changed as well. DRAWSTRING CLOSURE: Easy to use by just lying flat to change your wetsuit then tightening the drawstrings to transform into a small carry bag. PORTABLE & COMPACT: This wetsuit bag waterproof is easy to cinch up to a small bag with the built-in drawstring. Lightweight yet strong waterproof material (new, more durable upgraded material). SIZE: 3 different sizes is designed for both adults and children, with diameter(measures when laid out flat) about 20inch/50cm, 35inch/90cm, 51inch/130cm for your option.