The Petzl Secur is a shoulder strap system for positioning the Croll chest rope clamp and attach to Avao Sit, Falcon, Falcon Ascent and Sequoia SRT harnesses.
The Petzl Explo is a caving chest harness with an X-shaped construction that provides a good shoulder position, the chest strap then allows for precise adjustment of tension on the ventral ascender. The Explo shoulder straps allow the Croll ventral ascender to remain correctly positioned, in order to optimize efficiency and comfort during rope ascents when caving. Each strap is equipped with two HMPE gear loops and two slots for carrying equipment.
Established in 1977
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