CardNinja

I just received my CardNinja two weeks ago to use with my iPhone... and I love it! It is a perfect fit for what I was looking for. On the weekend, my wife and I like to hike, but I don't like to carry my loaded down full wallet. However, I always take my phone for safety and GPS logging of our journeys.

With CardNinja, I can slide in my drivers license, insurance card, a credit card and a $20... and I'm good to go!

The wonderful thing is that come Monday morning, I put everything back into my full wallet and CardNinja contracts back to its original size (e.g., it doesn't stay stretched).

I applied CardNinja to an ultra slim Incipio case, but I think it would stick to anything, including the phone's back.

Even my 17 year-old loved it. She said "it looks cool, dad!" (I'm not making this up).

CardNinja easily gets 5-stars from me!

Got it as a gift - stuck on to my Lifeproof case and I use it every day. Holds a ton of stuff - it's the only wallet I use.

Sweet logo people! I want a sticker!

Great, high quality product. Ingeniously simple, yet elegant design. I use it to carry my ID, two credit cards, and a couple business cards.

It's perfect for a night out on the town, for business trips, or for formal occasions where you don't need your full compliment of Chipotle rewards cards, and where you don't want any added bulk in your pockets.

The only people I wouldn't recommend it to are those trying to feign "junk in the trunk" with a bulky wallet. Those people probably are better off carrying their Chipotle rewards cards at all times anyway.

I've been very impressed with this little product. Having used a billfold for ages, it took a little getting used to, but now I never want to go back to having a large, uncomfortable wad in my back pocket. It took a little getting used to slimming down what I carry, but it's a good exercise. We carry far more than is necessary.
It's the perfect size. Fits quite well on my Droid RAZR MAXX. There's no concern of the cardninja falling off the carbon fiber back of the phone. It's held on firmly for the last few weeks I've been using it. I also find the neoprene type material pleasing to hold onto. I also find the extra width is an additional place to grip the phone if you have shorter fingers like I do.
Not only is this a great product, the customer service is outstanding. If you have an issue or concern, they're very responsive by email, which is amazing. Did an exchange for a different color and bent over backwards to help me with it.
Great job overall!

Great way to carry cards and cash. And I can use the protection of my existing case.

I got one for my son for Christmas and he loves it. He keeps his college ID, Room swipe and debit card in i,t and says it is so convenient. Now his roommate is getting one too!

Easy. Very convenient. And looks great. I used to go out at night with my bulky wallet plus my cell phone. Not only was it a little uncomfortable, the wallet would leave an unsightly bulge, especially when I was wearing something snug-fitting. Now, I'm streamlined, feel better and look better - at least that's what my wife says. Highly recommended. Money well spent.

Read about this product in the NYTimes and bought two for our Christmas stockings. My husband and I love our CardNinjas. Perfect fit for our iPhones, and the free shipping was very fast! Glad to see a company doing so well that has a great product and excellent customer service.

The personalized response and help in getting this great product delivered on time for Christmas was incredible. Ethan is outstanding!

Just got back from Newark Airport. CardNinja was great to quickly pull out my ID when going through security even when all my other stuff was buried in my backpack.

Got a black one as a gift, and just bought one to give as a gift! Really convenient to use and shipping was really fast.

Just handed 2 out as early stocking stuffers. Great gift. Everyone loves it (such a great thing to get people excited!).

Got it for my beautiful new iPhone 5. Cardninja looks great in person and fits well. I use for travel - just keep a license, credit card and some business cards. Thanks!

Great change from my old wallet. Use it at work for my building ID (one of those scan card things) and I don't even need to remove it.

My steel one looks good, but would be cool to get more colors options though.

Bought a black one for myself. Love it. Just ordered a purple one for my wife. Great gift. Thanks to Todd for your support when I was ordering - really nice customer service people!

Got a purple Ninja. I bring it with me to dinner/bars/concerts. No more carrying a clutch. Now my b/f wants one!

Got my black CardNinja. Int'l shipping to canada was fast (And was only 5 bucks) and the 'NInja lookd great on my Android (HTC One)
Had a question and customer support responded really quickly. Super nice people - would definitely recommend.

I wasn't sure what it was made out of but figured I'd give it a try and just return it if I didn't like it.
Well it's been awesome and I just wanted to give you a few points:
- It's made out of a strong spandex fabric with a rigid backing. The fabric seems really study but also stretches a lot to hold stuff (I have 5 cards in mine, but it seems like it could hold more). The backing has basically an adhesive sticker. I put it on my iPhone and sticks really well. Definitely not falling off. I actually just took it on a flight to Denver. It was great for getting through security without a wallet - one less thing to forget.

I got a Steel Ninja (it's a slightly metallic silver color - looks nice) and have used it for some time. I had been concerned that it would stretch out over time and not hold tight, but it's still very tight and nothing slips out - even if I shake it upside down...like a Shake Weight...(Bad example I know!)

My Ninja (Black) has been great. I was worried that things could slip out when running to the gym, but the elastic is very strong. It shipped very quickly (arrived 3 days after I ordered) and I've used it ever since. It's been a real conversation starter at the bars.

Got a purple one - looks almost like a metallic purple (sort of eggplant) like color. Works great on my iPhone 5.

I always took my phone when I went for a long ride, but never knew what to do with my wallet.
I just received my CardNinja, and now I just put my phone with a CardNinja into the pocket on the back of my riding jersey and go. Works really well!

As a guy, I carry my wallet, phone, and keys at a minimum. That means I need three pockets and when I sit, I don't want anything in my butt pockets, so that puts me down to 2 pockets.If you're like me, then you just end up putting one of those things on the table or desk when you sit down.
But the Card Ninja takes care of that. Since I have the most important things from my wallet on my phone, securely held with the Card Ninja, that eliminates the need to carry my wallet...especially when I'm going to the gym or making a quick run to the grocery store.
Oh, and compared to other wallet-substitutes, this one is cheaper, can hold more stuff, and attaches to any phone or phone case. Well made product!

I'm always on the run but like most women like to mix it up and carry different purses.
Before I got the CardNinja, I'd always forget my ID and important credit cards when I changed bags. Now, I just put the essentials in my CardNinja and go!