WORKMAN's X-Shelter(R) Insulated α Warm Jacket. I purchased this jacket but am selling it because I haven't worn it much. It might not be warm enough for the dead of winter in Tokyo, but it provides ample warmth for other seasons. I think it could handle even mid-winter if you wear a windbreaker over it. https://workman.jp/shop/g/g2300036254025/?srsltid=AfmBOoocujnztwNasoQT6_pBGJ4SL4cQmDFHtGTZchc_mR2r8C4vART3 - Brand: WORKMAN X Shelter - Color: Black - Style: Jacket - Design: Simple design - Uses: Outdoor Thank you for looking.