Yes, they make matching socks. I've climbed in them before, and they're a bit different to climb in than specialized climbing shoes (I wear 5.10 spires normall

Yes, they make matching socks. I've climbed in them before, and they're a bit different to climb in than specialized climbing shoes (I wear 5.10 spires normally). The rubber on the FiveFingers model I tried wasn't as tough as the 5.10 Stealth (which is likely different depending on the Fivefingers model), and climbing shoes also have much better ankle support. In particular, my Spires have a band of thick, tough rubber that covers the Achilles tendon, which is brilliant for heel-hooks. The Fivefingers, lacking that support, made moves like that more difficult.