This is a high-neck T-shirt that my husband wore when he was an LL size. The material is 85% polyester and 15% cotton. The length is 70cm. It's not thick, so I recommend layering it in the winter. I will wash it again before sending it via Mercari shipping. I am extremely busy, so please refrain from purchasing if you need it urgently. There are some bleach spots on the hem, but I think it's fine for work clothes or gardening. Please note that I may only be able to reply in the early morning or evening.