Purchased this Passport Holder as I wanted the RFID feature. Turns out it is also waterproof.
Recently took it on vacation where we had 6 plane trips and I do not regret buying it. I carried two passports, spare money ($1,000), a pen, keys and a credit card and it maintained its slim profile. I love having the wrist strap as it was a convenient way to still easily access during the check in and security process. No need to put it away in the bag each time or have to hold it with one hand. The front sleeve was great for putting boarding passes or the customs declaration stuff and have quick access to them. Also love the fact that it's waterproof. Would buy another or something similar in the future should this break