The armbands come in two sizes.
Please read carefully: Armbands meant to be worn in the crease between shoulder and biceps. They are supposed to be somewhat tight. Some guys prefer to wear them on their biceps.
Please measure the circumference of the area you will wear them. Our shorter, S/M armband will fit 12″-17″circumference, most comfortable up to 16″. This size fits most guys. The longer, L/XL armband fits 15″ to 20″ and most comfortable 16″ and up. Only a few guys will need this size.