Size L light hound. Gently used and kept in excellent condition. I use these almost daily in the winter on our dog walks and find I only need to charge the battery once a month or so. I think the 12H battery is a gross understatement. From the website: Noxgear.com/lighthound 360° visibility up to 1/4 mile Durable & machine washable Rechargeable 12 hour battery