Neck Closure Large Size (56-64 cm) HLA 66 stable and consistent during day-to-day

stable and consistent during day-to-day arborist climbing

Why Choose the Petzl OK

3-in-1 nozzle: Flip between fan-jet

4 kW / 6 hp – High torque output with reduced emissions and fuel consumption versus conventional 2-stroke design

front and rear sections allow excess body heat to escape

Neck Closure Large Size (56-64 cm) HLA 66 stable and consistent during day-to-dayProtos Neck Closure Large Size (5664 cm) The Protos Neck Closure Large Size is designed to increase the head circumference range of your Protos Integral helmet, providing a more comfortable and secure fit for users with larger head sizes. By swapping the standard neck closure for this larger version, you can extend the adjustable range of your helmet for improved comfort, stability and safety during professional use. This replacement neck closure is