The Pro-Tec Full Cut is a timeless silhouette that has been worn by riders for decades—shaped by the godfathers of action sports and often imitated but never replicated. There are very few ways to improve on a true classic, and pairing the Full Cut with one of BMX’s most recognizable marks—the S&M Shield—is one of them.

Durable High-Impact Shell: Built with a rugged High-Impact ABS outer shell paired with an EPS liner to absorb shocks and deliver reliable, everyday protection.

Premium Comfort Padding: Heat-sealed, compression-molded pads deliver a secure fit with long-lasting comfort and reduced bulk.

Breathable, All-Day Comfort: Features 11 open vents to keep airflow moving, helping you stay cool whether you’re cruising streets or riding hard at the park.

Trusted & Safe: Triple-certified to meet U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older, ASTM F1447 for Recreational Bicycling or Roller Skating, and ASTM F1492 for Skateboarding and Trick Roller Skating. 

SIZING: XS: 52-54cm | S: 54-56cm | M: 56-58cm | L: 58-60cm | XL: 60-62cm | PRO TIP: We strongly recommend sizing up if your measurements fall at the upper end of a size range. Example: If you measure 54 cm, choose size S. Based on years of customer feedback, the larger size typically offers a better, more comfortable fit.

Shop the Pro-Tec x S&M Bikes Collection: HERE