aLOKSAK 100% Waterproof Bags Tested and Approved by U.S. Navy Experimental Diving Unit and SSI. Electronics, firearms and documents are damaged from exposure to the environment. aLOKSAK is the only re-sealable, flexible container offering protection from all the elements. The patented, light-weight storage system prevents air, humidity, water, dust and sand from harming your valuables. aLOKSAK can also ensure your treasures are safe from the passage of time. Features: • Hermetic Seal, an absolute airtight seal preventing the re-entry of air and micro-organisms • Made in the USA • Holds 5 patents • Stock sizes ranging from 5” x 4” to 32” x 16” • Protects against microscopic particles like dust and sand • Recyclable and reusable Technical Specs: • FDA and NSA Approved Medical Grade Materials for food and biohazard storage • Comprised of .6 mil new generation film • Dart Impact greater than 850 grams • Tinsel Strength rated to 6,250 PSI • Scuba Schools International approved waterproof up to 200 feet • Durable 6 mil film has a "cold-crack" tolerance to -50 F/-45 C, far lower than that of PVC or vinyl • No BPA, based on information from our raw materials suppliers and made in good faith Field Tested “I’ve used aLOKSAK since 1999 in every race and in every kind of diverse condition. Every piece of clothing, mandatory gear, electronics, and even food we carry during a race go into an aLOKSAK. aLOKSAK has never failed me.” —Ian Anderson, World Class Adventure Racer