Mountain Uniforms provides custom built technical outerwear for SAR, LE, Fire Dept, and Ski Resorts. In fact, several base level fire departments are already in their gear.
While everything is built to the unit-level customer’s specification, this jumpsuit should give you an idea of the possible. They use a Toray Nylons waterproof breathable laminated to US made MultiCam with all critical seams sealed. But, they will dye to match and have a variety of fabrics at their fingertips.