This is a fleece-lined undershirt of moderate thickness. I think it can still be worn, so I'm putting it up for sale. I don't see any noticeable fraying, but please check the photos if you're concerned. 【High-Quality Material】 This Mizuno undershirt is made of high-quality material that provides a comfortable fit. It's soft, stretchy, and designed for ease of movement. 【Functionality】 The high-neck design provides firm protection for the neck, keeping you comfortable even in cold environments. It's the perfect item for sports and training. 【Stylish Design】 The simple and refined black design goes well with any sportswear and is also suitable for everyday wear. - Brand: Mizuno - Color: Black - Size: S - Collar Design: High Neck Thank you for looking.