I bought these to replace a pair of CX 237s which were nice shoes, but had a couple of flaws or limitations. First, the boa closure on the 237 model did not have the micro adjust in the reverse (loosening) direction, the 238 has the micro-adjustable boa closure. The 237 also had a leather liner. Over the time I've had them this liner has cracked and torn from getting wet and then drying out, repeatedly. I never had that issue with other shoes, but it was what caused me to replace them. The 238 fixed this issue by making the liner synthetic. Other improvements are the toe and heal guards to reduce the likelihood of scuffing the leather. The shoe is vey comfortable, particularly if you like a roomy toe box like I do. The sole is a nice, stiff carbon sole.
Overall, Lake took a good shoe with good value for the money and made it quite a bit better! I'm very happy with it and highly recommend it.