Snug as a.... The Crocs Crocband Mammoth is the replacing the original Mammoth style, it's still got all the warmth & comfort, but now is gone funky & retro, so your feet will look pretty snappy! The lining is warm & fuzzy & snug, there is a non-slip sole & because the crocband mammoth is constructed from the crocs legendary croslite material, there is supreme cushioning & comfort for your feet. Size Hints As there is a liner in these shoes, some customers have chosen to go up a size, we recommend if you are a half size to go up, so e.g if you are a 4.5, go for the 5, but please be aware that the liner will flatten a little after wear, making the shoes a little more roomy, so don't worry if they feel a little snug at first try, Please do make sure you are happy though before you wear them, worn shoes cannot be returned!