Quick release/lock for ffp2 mask which is mandatory if you do wintersports and use the provided transports up the mountain.

i also sell it via etsy and willhaben

https://www.etsy.com/at/listing/1134733347/
https://www.willhaben.at/iad/object?adId=524354781
 

Works quite well, design is inspired from the companys design “Naked”