To add another size datapoint. I’m 178cm tall (5ft8) and approximately 68 kg (~150 pounds) and wear an ST. I must say it’s tight and it takes me significantly longer to put on comparer to the Huub Agilis in ST. However, when it’s on it fits well. Taking it off is not the easiest (especially considering it’s a 1400€ wetsuit), but with lube on the forearms and calf sleeves it’s OK. I’m still considering cutting the bottom centimeter off, I’m just not sure if the added sticking on both the legs and sleeves are intended for that.