Red, mens, long sleeve, mock neck shirt by Nike. Mock neck includes dark red, embroidered logo. Very iconic of Nike's 90's and 2000's menswear. 
Early 2000s vintage. Nike can be dated by the label design used. The gray label this garment has was used at the turn of the millennium. 

Size L
Good condition, especially since it's vintage. There is one small area on the bottom left where a hole is starting but doesn't go all the way through. Other than that it looks great. No discoloring, stains, or rips.