PRO TEC Bike Helmet CITY LITE Satin Black w Under Cap.

Has LED light, but don't know if battery is good or not, instructions on how to change battery are included.

New with tags. Box has shelf wear.

Size XS 52-54 cm 20 1/2" to 21 1/4".

With the help of the tape, take the measurement at the region having the fullest part of your head. More preferably, you can do this around the forehead region just a bit above your ears. That will help you to know the circumference of your head and where it is widest which is obviously at the forehead area.