@sunguramy@flipping.rocks Have you considered canyoning boots? Gets around the whole calf issue by only being ankle high (bonus is that they can't fill with water, saving you a couple of kilos while prussiking up a rope) These are the style I have, and have lasted a few years of caving. https://img.directindustry.com/images_di/photo-g/8649-13162172.jpg