IFR Ultrasoft Cooling Hard Hat Liner Singing Rock - semi-permanent connection: with a

- semi-permanent connection: with a RING OPEN gated ring

practical and durable:

without loss of adjustment

hung open at a workstation

attachment for a lanyard with a RING OPEN to the textile connection point

IFR Ultrasoft Cooling Hard Hat Liner Singing Rock - semi-permanent connection: with aDetails Ultrasoft Cooling Hard Hat Liner & Neck Shade NS Blue O S When soaked in water, the polymer crystals expand, and turn into a crystalline gel. The fabric absorbs water from the polymer, allowing the water to slowly evaporate for a cooling effect. The fabric stays cool and moist for hours due to the polymers water retaining properties and the slow evaporation rate. 1K 3K Microns water absorbing, non toxic polymer crystals Quick activation