It's a Korean model. When I searched for size 100, it was equivalent to a size L, so I bought it on Mercari as an unused item, but unfortunately it didn't fit, so I'm selling it. It has only been tried on. Please refer to the photos where I've included a measuring tape. I thought it might be equivalent to a size M, so I'm listing it as a size M. A hooded orange jacket made with waterproof material, with zippered pockets on the front for excellent functionality. - Design: Hooded jacket - Features: Front zippered pockets - Thank you for looking. Size...M Size...L Gender...Men's Features...Gore-Tex