On’s Cloudboom Strike LS , the company’s first iteration of these weird sprayed-on shoes, quickly became my favorite pair of runners. They became my go-to shoes, and I put many miles on them, even running a couple of half marathons. (I did not break any records, but thank you for asking.) I've been using the new version since it came out in February. The Cloudmonster soles feel great to run in, although they are noticeably less squishy than the Cloudboom versions. The benefits of that sprayed-on toebox are immediately noticeable. It makes the shoes much lighter (190 grams) than On’s other shoes. Also, a bioplastic membrane that adjusts to keep a snug but comfortable fit around your feet means there is no need to worry about laces coming undone while you run. The stretchy sides can make for a weird fit at first. Regular shoes usually have a smidge of space in the toebox for your digits to move around a little. The LightSpray casing molds to your feet, so there's no escaping the grip on your toes.…