They use a double ring type seal (what ever that means)...mine has been water tight and it's been in some hairy swells in the ocean quite a bit. Plus lake activities, pool, you name it. I would not worry one bit : )
Also got to think about the model I have and many other models they carry. They are Navy Seal certified so you ought to be safe
Also got to think about the model I have and many other models they carry. They are Navy Seal certified so you ought to be safe