Material Composition: Outer: 100% Polyester, Lining: 100% Nylon Care Instructions: Machine Wash Closure Type: Button Sleeve Type: Long Sleeve About this product: SS: Height 157-163cm, Chest 80-88cm, Waist 66-74cm S: Height 162-168cm, Chest 84-92cm, Waist 70-78cm M: Height 167-173cm, Chest 88-96cm, Waist 74-82cm L: Height 172-178cm, Chest 92-100cm, Waist 78-86cm O: Height 177-183cm, Chest 96-104cm, Waist 82-90cm XO: Height 182-188cm, Chest 100-108cm, Waist 96-94cm Description: Product introduction: Unisex tennis jacket from the racket sports brand YONEX. Equipped with the "Heat Capsule" function that charges with infrared rays, this top is perfect for outdoor training in autumn and winter. It also has a water-repellent function, so it can handle sudden rain. The anti-static function also prevents the unpleasant clinging of clothes. Lightweight and stretchy for easy movement. Reflectors are attached, so it can be used for night training. 【HEAT CAPSULE DOUBLE】 "Charging effect" that absorbs infrared rays emitted from sunlight and the human body and converts them into heat + "Heat radiation effect" that brings sustainability by the active action of far-infrared radiation agents. These two effects warm the body from the core. There is a difference of +6℃ in sunny conditions. 【Reflection】 With reflectors that reflect light. Safe for night sports. 【Water Repellent】 Uses water-repellent material 【Windproof】 A structure that shuts out the outside air and prevents body temperature from escaping. 【Lightweight】 Lightweight to pursue ease of movement 【Stretch】 Easy to move with excellent elasticity 【Anti-static】 Suppresses the clinging of clothes I bought it 5 years ago and never used it. It was about 14,000 yen at the time.