Petzl Elastic Waistbelt-Leg Loop Straps Seat It is compatible with most

It is compatible with most auto-locking connectors

Excellent durability for regular to intensive use:

Both the 3M Optime 105 Earmuffs ( part # 33288) and the 3M Hi-Viz Cap-Mount Earmuffs (part # 15820) will fit this KASK helmet when used with the brackets that come in the box with the helmet

It is made of PVC-free material

Petzl Elastic Waistbelt-Leg Loop Straps Seat It is compatible with mostReplacement elastic waistbelt leg loop straps (pack of 2) Replacement elastic waistbelt leg loop straps for harnesses in the AVAO range (sold since 2025), ASTRO range (sold since 2025) and SEQUOIA range (sold since 2026). Detailed description Compatible with the following harness ranges: AVAO and AVAO FAST European and International Versions (C071ABxx, C071BBxx, C071CBxx and C071DBxx), AVAO SIT and AVAO SIT FAST (C079ABxx and C079BBxx) sold since 2025