The Macon Team EPS Helmet from Bern Ultra thin ABS thin shell specifically engineered for EPS hard foam Weight: 15.5oz. Interior upholstery for a finished feel Standards: Meets ASTM F 2040, EN1077B, CPSC & EN 1078 industry standards Sizing: SM/MD (54-57cm); MD/LG (55.5-59cm); LG/XL (57-60.5cm) Most of the Bern team was stripping down their Macon helmets & running it without the liner over a beanie. Bern decided to line the entire inside of the EPS liner with compression molded foam to finish it off & drop it in the mix. Meet the Team Edition style of the Macon.