In this video I’m back with a proper “100 and out” check-in on the PUMA Fast-R Nitro Elite 3, because I’ve now put 100 miles through my first pair and I wanted to see what’s changed. I go over the wear and tear, what the outsole and upper look like after a decent block of training, and whether the ride has started to drop off or if it’s still got that snappy, race-day feel. The big context here is London Marathon prep: I’ve moved my original pair into training so I can keep a fresh pair ready for race day. I also talk through exactly how I’ve been using them in the rotation and whether I’ll keep reaching for them beyond the 100-mile mark. Then I compare the feel of the worn-in pair versus the new pair, because that’s the bit everyone wants to know: do they still feel special, or do they go flat? I finish up with the durability question and the bigger “how many miles have you got?” chat—because with a shoe like this, performance is the priority, but you still want to know what you’re getting for your money.