The SAYSKY Unisex Clean Pace Flex Jacket offers great wind protection and breathability. A durable polyester shell resists water and blocks wind. As the fabric is a four-way stretch material, it offers lots of freedom of movement. Weighing just over 200 grams, this SAYSKY Running Jacket is ultra-lightweight. Fit Guide The SAYSKY Unisex Clean Pace Flex Jacket has a regular fit. The male model is 186 cm / 71 kg and wears a size M (Medium) The female model is 170 cm / 60 kg and wears a size S (Small) We recommend choosing your normal size. Technical Features Breathability: 5/5 Wind protection: 4/5 Waterproofness: 2/5 Warmth: 2/5 Approximate weight: 208 grams Regular fit 100% polyester Ultralight and durable polyester is water-resistant and wind -blocking Elasticated collar, hem and sleeve panels Airhole side panels for ventilation Shaped sleeve hems with bonding Two zipper side pockets All zips are YKK Colour: Black