MUFFLER Q4 HEX KX250F 2.5 They are also anti-fog &

They are also anti-fog & scratch resistant

-Odorless EVA Foam

An engineered airflow system beginning at the mouthpiece ensures the SE5 is as comfortable atop your head as it is on the podium

impact protection and flexibility for highest comfort when riding

a result of Alpinestars technicians studying all the boot components and their connections – how the boot comes together

MUFFLER Q4 HEX KX250F 2.5 They are also anti-fog &Q4 Hex S A Slip On Muffler Less sound equals more ground Spark arrestor included Meets USFS and FIM World Enduro sound regulations Power gains throughout the entire rpm range Rugged design for off road endurance Made in the USA For closed course competition use only. NOTE: Will not pass 2025 FIM sound regulation Specification Type: Slip On End Cap Material: Stainless Steel Muffler Color Finish: Anodized Gray Pipe Material: Stainless Steel Model: Q4