The new benchmark for premium protection, the GX X2 builds on our gold standard GX collection with state of the art materials and breakthrough features. It is designed with exceptional attention to the unique requirements of the ?rst responder. Proprietary rubber outsole provides superior traction. Multi-directional outsole lugs and siping provide superior traction and flexibility ? 1680D Performance Polyester is durable, lightweight and fast-drying ? DRYGuard™+ is the ultimate waterproof technology featuring our most breathable membrane for maximum comfort. PU foam insert is lightweight, breathable and durable. Padded collar for extra comfort and ankle protection. 200g 3M Thinsulate™ insulation.