The Tone helmet looks good and works (even) better. Mindfully designed for good looks and dependability, Tone redefines how a bike helmet looks when it performs. An integrated fit system with Tri-fix webbing adjustment makes it easy to set your fit and get on your way, while internal channels keep air moving as you briskly ride along in comfort. Leaving the business to the inside, Tone gives you all the right reasons to get outside, from a commute to everyday cruising. For helmets sold in the U. S. and Canada: Complies with U. S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older.