ION Bike Vest Primaloft Hybrid Shelter men 2025The seasons favorite is being improved with a new insulation fabric called Thermolite Ecomade T down together with a wind resistant outer main fabric. The Thermolite fabric used is a loose, feather like construction that leaves enough space between clusters to trap heat using air and open space. An advantage in comparison to normal down is the fast drying characteristics, perfect for Shelter riding conditions. With the new 4 way stretch fabric on the