Foursquare Omar Jacket 2009: If you’re the rider that likes to rip it up from first chair to last and need a jacket that you can layer up and down with, bust out Foursqaure’s Omar Jacket. The Omar Jacket is a lightweight Shell that is the perfect outer layer for a rider who prefers to keep warm by layering. However, just cause the Omar is lightweight does not mean that it can’t handle the elements. The Omar jacket is made from 3-layer material to make it more breathable, it has waterproofing up to 25,000mm, and features fused zips and seams to ensure that you’ll be dry all day long.