Melife&reg; Colorful Visor Hat for Fishing Hiking and OUtdoor Activities Lint + Waterproof Aluminum foil With water-resistant backing and handy carry strap Measures 59 by 79 inches when open; Clean carefully Great for picnics, tailgating, camping, emergency, beach, star gazing, outdoor concerts or baby's crawling blanket Aluminum foil bottom waterproof and environmentally friendly Large enough to let you and your family or friends enjoy the glamour of nature