The main bag has a completely intuitive, Tuck & Roll, strip closure fastened with a durable, metal buckle made of stainless steel.

The buckle is decorated with a laser-engraved Ammonite System logo.

Additionally, the bag is equipped with a steel „eye” for suspending.

Rolling three times ensures tightness against conditions from the outside and the certainty that not only water but also, dust or dirt will not get inside or outside.