The 4.5 HydraDri jacket will keep you dry on those wettest of rides in the worst of conditions. Leatt has developed their own 3-layer waterproof and breathable membrane that is bonded to the inside of the jacket. Tested to surpass waterproofness of 20,000 mm+….so what does this mean? Well basically this jacket is good for use in heavy rain, and wet snow under high pressure!! Also surpasses 20,000 breathability….so once again what does this mean? As well as not allowing water in, this clever material allows moisture from your body to be expelled to help keep you cool!! If the sun should make an appearance, there are ventilation zips in the front and back. There are 5 storage pockets using YKK zippers, and adjustment in the waist, neck, and wrist. The tailored waist-length fit is designed to work with or without body armor, and the collar can accommodate a Leatt neck brace if worn. Lightweight, waterproof and Breathable with stretch materials for mobility HydraDri EVO Membrane - 20.000mm/20.000g/m² Waterproof/Breathable 5 Storage pockets and 4 zipped ventilation points Neck collar that works with: No neck brace / Neck brace uncovered sitting outside the collar Tailored cut for Moto riding with or without body armor Constructed with multi-row reinforced stitching Brush guard reinforcement in shoulders and elbows Top Quality YKK Japan Waterproof Zippers Rear reflective safety print