Composed of premium bio-acetates, recycled stainless steel and sea bottle plastic; complete with bio-degradable demo lenses, Rockstar Biodegradable has sustainable ISO:14001 accreditation. Rockstar Biodegradable is carbon neutral (where the carbon produced is replaced on a 1:1 ratio). Rockstar Biodegradable believes in improving sustainability whilst maintaining the highest standards in quality. Designed in petite sizing, Rockstar is a great choice for older children and teens.