... we often use cotton,combed cotton,polypropylene,acrylic,polyamide (nylon),polyester,spandex,elastane etc. 2). materials can be chosen according ... availableWe always supply good quality and competitive price. Material70% polyester 30% spandexSize&colorfreeSample time1~2 daysSample charge300~500 RMBPaymentT/T ... receive order,we will refund all the sample charge. Hot selling arm sleeve polyester knitted