No other umbrella or sun shelter will protect you as well as the Rio Beach Total Sun Block Sun Shelter. This umbrella blocks 99.8 percent of UVA and UVB rays. These are the sun’s damaging rays that increase the risk of skin cancer, early aging and sunburn. The roomy interior features 2 inside zip mesh windows to allow more airflow and interior pockets to keep your valuables safe and protected. Lightweight and portable complete with a carry bag with strap.