Smith Nexus Mips Size MWhen you spend more days on the mountain than off, the Smith Nexus is your helmet for bomber protection that holds up season after season. In addition to a hybrid shell that balances a lightweight, low profile design with a durable hardshell exterior, the Nexus steps up impact coverage with KOROYD throughout the helmet, a fully vented material that absorbs more energy in a crash than traditional foam construction alone. Add Mips for increased safety