Pre purchase notice: Weight: 180 grams (weight per square meter of fabric) Ingredients: 100% polyester fiber [The collar and tag of the clothes do not have any labeled ingredients, please refer to the link for accuracy. If you mind, please do not take photos] Size: You can choose according to your height and weight. If you prefer a looser fit, please choose one size larger; Attention: For bosses with high quality requirements, please do not place an order as this product does not meet your high standards