Jacket: White Light Jacket NY81981 Retail Price: ¥20,900 Men's This running jacket for men is insulated and breathable, designed to handle cold winter conditions. The main fabric of the outer shell uses lightweight PERTEX® QUANTUM, and PRIMALOFT® Gold Insulation, which incorporates the highly insulating material aerogel, is used in the front core. Stretch knit with excellent elasticity and heat retention is used for the sleeves, and ventilation is provided by laser holes on the sides and back. This item was developed through research at the Goldwin Tech Lab on the differences in body temperature rise in different areas of the body, pursuing comfortable wear during winter sports. It is designed with electrostatic care to suppress the generation of unpleasant static electricity. ■Fabric ＜Outer Fabric＞PERTEX QUANTUM ECO 20D Ripstop (100% nylon) ＜Front Body Insulation＞PRIMALOFT Gold Insulation PRO (100% polyester) ＜Sleeves/Side Sections＞Stretch Brushed Single Jersey (92% polyester, 8% polyurethane) ■Function: Synthetic fiber batting in the front body, thin fleece on the sleeves and sides, single-layer woven fabric on the back and underarms / thumbhole cuffs / laser hole ventilation on the sides and back I bought this for running and wore it about twice. I am no longer running, so I am selling it. The inside is fleece, and there is some pilling even though it hasn't been used much. Please understand that this is a used item before purchasing.