The S-ONE OG DLX helmet fits great and looks cool too! It has the classic skateboard helmet look and a snug and comfy fit. The OG DLX helmet is a professional grade skateboard helmet with soft foam inner padding. The soft foam inner padding is wrapped with DLX terry liner. The DLX helmet liner is a soft sweatband material that is sewn around the helmet padding. The DLX liner soaks up sweat and keeps your head cool and helps the inner pads last longer. Also, the DLX liner is easily washable so you can rinse it out after a heavy session. Sizing as follows: Small-21", Medium-22", Large-23", XL-24".