The i-Run team says
Technologies
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L3 : Soft Shell & Hybrid Layer
A layer able to provide additional thermal insulation as well as partial protection against rain, wind, and snow. This comfortable layer offers maximum freedom of movement.
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Idro Breath
Idro Breath is a waterproof, windproof, and breathable membrane developed by La Sportiva to ensure maximum protection against weather elements while paying utmost attention to the environment.
It is entirely PFC Free guaranteed with bluesign supply chain certification.
The waterproof properties are ensured by a fabric with a water column thickness of 20,000 mm.