Purchased from Nishimatsuya in the winter of 2024 and used for about 3 months. There is some pilling and fuzzing, and a feeling of use, but no stains. I think it can still be used. Images 2-4: 2-way all-in-one, size 60 Fleece-lined Please remove the pills. Images 5-6: Long-sleeved underwear, warm material, size 60 This is a product sold by Nishimatsuya that is clearly labeled as warm material. It's a little thicker than the all-season ones.