Loksak aLoksak 3 x 6 in 2 Pack Drybag Made in USA 6" wide FDA and NSA Approved Medical Grade Materials for Food and Biohazard Storage Comprised of a 6 Mil Patent Protected New GenerationFilm Dart Impact ASTM Method D-1709Typical Value:&gt;650 grams Tensile Strength ASTM Method D-882Typical Value: MD: 6,250 PSI/TD: 5,900 PSI Scuba Schools International Certified Waterproof Up to200 Feet/60 Meters Durable 6 Mil Film has a Cold-Crack Tolerance to-40F/-40 C, Far Lower than that of PVC or Vinyl No BPA or Use of Any Harsh Chemicals