Bell 4Forty MIPS Helmet. All-mountain value — optional Mips Evolve, Float Fit, Sweat Guide, adjustable visor, full hard shell — the 4Forty is ready for anything the trail throws your way.

• Fusion in-mold polycarbonate shell
• MIPS: A leading slip pane technology designed to reduce rotational forces that can result from certain impacts. 
• Float fit
  
• Built-in sweat guide
• Adjustable visor
• Weight 380 grams (size M)
• Small 52-56cm 6 1/2" - 7"
• Medium 55-59cm 6 7/8" - 7 3/8"
• Large 58-62cm 7 1/4"- 7 3/4"