In this post I will present my opinion on the new 5.10 Quantum’s. Not too long ago 5.10 released the new upgraded Quantum’s, 5.10 stopped producing the old ones a few years back, but looks like a lot of people liked the old ones (including me) so the company decided to make a newer version. In my opinion the new Quantum’s are great: they have a good balance of comfort and performance, they work great both bouldering and rope and I have no complaints about how they perform. But there is one thing I don’t really like about the shoe, its durability. My first pair lasted 1 and a half months before it got a hole which is pretty unusual for a climbing shoe, usually a shoe lasts about 4 months before getting a hole. At that point I was pretty disappointed but before I got the hole in my first pair I won a free pair of the same shoes at a local competition. So I started wearing the new pair and I got a hole on the top of the shoe after only 2 weeks of climbing! (pictured below) And at the same time I already started getting a hole in the front of the shoe. What is unusual is that from my experience with different climbing shoes from different manufacturers the rubber would get really soft and thin before getting a hole, but with these shoes the rubber was pretty much brand new and it just cracked. I’m not sure if I got unlucky with both, I do climb a lot indoors and outdoors so it might be that I scratched it or stepped on something sharp but still with each shoe lasting less than 2 months that’s a little bit suspicious. Overall these are great climbing shoes but if you’re planning on buying this then keep in mind that it could wear out pretty fast.