Vesta SIMMS West Fork

PrimaLoft® Silver Insulation ThermoPlume® with Cross Core™ Technology:
Small, silky plumes of synthetic fiber mimic the lightweight warmth, softness and compressibility of natural goose down. Unlike down, even when compressed, the insulation properties of this high-tech package are maintained because each individual fiber is infused with Aerogel technology. Originally utilized by NASA in space suits because it does not conduct heat or cold, Aerogel maximizes the thermal value of the insulation material it's paired with - in this case PrimaLoft Silver Insulation - to deliver the highest level of comfort and performance in an all-synthetic package. This special blend of fibers delivers the performance features you need – insulating loft, wet weather protection and compressibility. Ideal insulation for shoulder-season fishing adventures, back-country treks or daily coffee runs.

Primaloft® Gold insulation maintains 90% of its warmth when wet and provides the highest warmth to weight ratio of any synthetic insulation available. Primaloft Gold insulation contains 84% post-consumer recycled content, minimizing impact on the environment.

PERTEX® QUANTUM PRO USES AN ULTRA THIN WATER RESISTANT COATING TO PROVIDE INCREASED WEATHER RESISTANCE FOR EXTREME CONDITIONS.
By combining a tightly woven face fabric with a microporous coating, Pertex® Quantum Pro delivers a very high level of water resistance whilst remaining lightweight, soft and breathable.

The increased weather resistance and durable construction means these fabrics are ideal for use in cold or damp environments where keeping warm and dry is crucial.