Organic Cotton 100% Long-sleeved T-shirt Inner Warm Material This is a slightly thick, warm fabric. It was useful last winter. I think you can still wear it. This is the final price, so please refrain from price negotiations. We do not offer holds or dedicated listings. - TRUECOTTON is TRACEABLE organic cotton, allowing for the "identification of farms and spinning mills." Choosing organic cotton made in places where people working on cotton farms can live healthy and happy lives, and people working in spinning mills can feel motivated to work tomorrow, in an environment that supports them. It is our duty to confirm the truth that not only those who wear fashion, but also those who create it, are happy. Fulfilling that duty may be what sustains the Earth's future -