Uncomfortable. The feel under the foot is like a brick esp on the inner arch - like a piece pushing into the arch.

Fits like a sock with a soul

Immediately from first try the NMD S1 was comfortable. It’s like a sock with extra textile at the front. No tongue. High round toe box. It holds and doesn’t grab the foot. My feet are WIDE and my normal size fit with a tiny bit of room to spare. The transparent mesh on either side of each shoe is a nice detail especially if you have colored quarter socks. Glow in dark threads in the shoestrings top it off. The sole is sturdy but also springy. Chose this ine instead of Yeezy.