FCYOSO Men's Cool Army Style Gold Shoulder Strap Seven Sleeves Button-up design shirt Color:Black Material:Cotton Guarantee: 30 days money back guarantee. We take so much pride in our products, and we guaran tee our customers 100% satisfactions ,If you have any advise about the product or service,welcome to email us and we will collect all the suggestion to see whether upgrade the product.That is what we are doing now.And we will keep it up. BRAND:Designed and manufactured by FCYOSO,which is a registered trademark protected by both Amazon and US law,Serial Number 87041277 ,We have never authorized other sellers to sell FCYOSO products.