Alpinestars - Bionic Action Chest Protector Key Features: 

• Extended padding to offer more protection against tire roost without obstructing arm movement.
• The protectors are perforated for maximum breathability and cooling ventilation.
• Elastic closure system features newly designed, quick and easy-to-use buckles that fit a broad range of rider body sizes.
• Padded chassis for optimized levels of comfort and a close-to-body fit.
• Adjustable shoulder straps for an optimal fit.
• Bionic Neck Support compatibility with the BNS A-Strap available as an optional extra.