Trek Ballista Mips Biking Helmet Black Matte FM24 000 mm water column and

000 mm water column and breathable with a water vapor permeability of 3

with reflective logo print on the back

High waistband for consistent fit

Product Code: 2800114-39102

47% recycled polyester interlock

Trek Ballista Mips Biking Helmet Black Matte FM24 000 mm water column andWhen speed is your top priority and every watt counts, reach for the helmet that'll cut through the wind to save you seconds. Ballista is Trek's fastest, most aerodynamically advanced helmet. Highlights: Circumference S M : 51 57 cm M L : 54 60 cm Fit System: BOA Buckle Type: Standard Buckle Trek's fastest, most aerodynamic helmet will save big watts and shave crucial seconds An excellent ventilation system makes this aero helmet surprisingly cool and