Useful insulating mid-layer that's the perfect partner for a waterproof jacket when temperatures cool. Slender baffles are packed with down-like ThermoPro fill to help retain core heat. With H2OShield DWR finish and 4 zipped pockets – including RFID security pocket.H2OShield plant based DWRRFID security pocketAdjustable hem4 pocketsWarmth rating 3640gTechnologyThermo Pro: ThermoPro fill uses specially constructed fibres to simulate down construction, delivering comparable heat retention properties to natural down.H2OSHIELD: A plant based water repellent bonded onto the fabric which is made from a renewable source, allowing rain and water based stains to simply run off.