All Myssy beanies should feel a little bit tight in the beginning, the beanies adjusts to the size and shape of your head within the first week of use.
Our One Size / M fits 85% of our customers. It fits well for hat sizes between 54 to 59 cm. Each Myssy is unique, and though all our grannies work off from the same size chart, not all hats are precisely the same.
Read more about our the size chart here.