Bern BMX helmet, size M, Troy Lee Designs design. - Brand: bern - Size: M (55-57 cm) - Model: Troy Lee Designs Thank you for viewing. This is a used item. Purchased around 2019. The Bern helmet has some peeling on the forehead area and shows signs of use. The Troy Lee Designs helmet was not used much. There have been no major falls or impacts. This is a used item, so please understand before purchasing.