I am a big frequenter of martens Docs (mixed and female models), I wear since college, normal size 40 is perfect for me, and there surprise Try it fully compressed in width, and many in length impossible to hold more than 30 seconds in front. they are too thin for my feet, so no interest ordered the next size up no worries in length. and the crackle effect is nice, but it is in the light or iridescent pearly hues of blue, green, purple etc ... so even the right size not sure I would have worn them often. My teen girl of 13 who makes 40 also is happy to keep to it! she loves it .... go very well him fine enough walk, but even it is a bit tight at the beginning found.