Review on 📱 Adhesive Phone Card Holder Stick on Wallet Pockets - Stretchy Lycra Credit/ID Card Sleeve Sticker for Back of iPhone, Android, and All Smartphones - Set of 3 (Black, Navy Blue, Light Blue) by Jason Morrison

I replaced my old rubber/silicone card sleeve with these and they are a billion times better! I can put more in my bag and the outside pocket is handy too. The only real downside for some people will be that if you put a lot of cards in your pocket and then decide to only carry one or two, it's likely to stretch a bit and not hold the card securely. It's not a problem for me and I have no problem with things falling out. It's also much more durable than the free sticky card sleeves you can get elsewhere - they used to tear very easily - they've held up really well so far.