Bi-Elastic Cap Size:59 and it is all about

and it is all about comfort with softer seams and an optimized fit

0 is the updated successor

and running

or if your body measurements places you in-between two sizes

0 singlet is an upgraded version that feels very comfortable

Bi-Elastic Cap Size:59 and it is all aboutThe cap is made of an elastic material which provides a good and comfortable fit on the head, as well as protection against the elements. It has a breathable mesh lining on the inside that insulates well, which makes it perfect for training and other outdoor activities during the colder months of the year. A versatile cap that suits women, men, girls, and boys.