Their Grid Tablet Bag is like a ziplock bag on steroids. The UV resistant polyurethane laminated nylon is combines with an airtight ZIPDRY seal with welded seams and mil-spec stitching.
Watershed offers a ton of solutions in a variety of styles, sizes and colors, including bright yellow, black, or desert camouflage as needed. There is also a Clutch Smartphone Wallet for an iPhone, cash and ID. Their items are proudly made in the USA, just like they SEALs who use their gear! See www.DryBags.com for the full product line.
I will be cruising to Cabo San Lucas soon and am looking forward to putting the bag to the test, but I doubt I'll exceed the Navy SEALs requirements!