Zipper closure Material: Polyester And Cotton. This casual t shirts is made of high quality flexible fabric,won’t be out of shape after long time wear.Gentle to touch skin,soft and comfortable to wear,feels terrific all day long. Size: Please check the size chart before you order, and choose the size to buy according to the US size, such as your usual size is S, please choose S, You will get a Tag L product, thank you, Our products correspond to US size information: US XS(Tag M), US S(Tag L), US M(Tag XL), US L(Tag 2XL), US XL(Tag 3XL), US 2XL(Tag 4XL), US 3XL(Tag 5XL), If you have any problem, Contact us, thanks Style: These moisture wicking gym tee shirts are made with comfort and performance in mind. We combine a non-restrictive V neck with short sleeves to bring you men??s athletic performance shirts that deliver more flexibility and a wider range of motions. Sports and leisure: These mens athletic shirts help dissipate heat quickly and offer more breathability while being gentle on your skin. We use a 4-Way Stretch Fabric that allows you to move seamlessly making sure you stay comfortable through any activity. Multiple possibilities: Whether you??re training, exploring or adventuring, our mens moisture wicking short sleeve shirts will give you the right support and comfort so you can push yourself further. Ideal for training, exercise, running, hiking, climbing, biking, cycling, sports and much more.