I've ridden 5.10 Freeriders for years but on long descents, I start feeling my pedal pins a bit to much for comfort. In the search for a thicker sole, I picked up the GR7 from Shimano. This is a stiff sole indeed, so much so I cannot feel the pedal underfoot. I've replaced my pedal pins with longer versions and we are getting along at the moment but the search for the perfect flat pedal shoe continues. I love the hard toe cap which is a no brainer but the neoprene debris sleeve surprised me. Out of the box I wasn't stoked on it but they work great and you don't notice them. Pebbles in your shoe are a thing of the past! They are way more durable than the 5.10 sole, I usually tear through the rubber on 5.10 in a season but I'm going on season 2 with these and no signs of wear on the bottom. For sizing, I wear an 8.5US and went with the 42 which fit great. If you want to talk about my flat pedal journey, where I'm going next, and how you can skip the trial and error process of finding a great flat shoe, give me a call at extension 2348.