Undershirts, 2 long-sleeved and 2 short-sleeved. I've worn them a few times, but I haven't used them much, so I think they can still be worn a lot. They're made of a smooth, quick-drying fabric. If possible, I'd appreciate it if someone could purchase all four together. DESCENTE navy undershirt, comfortable to wear. - Color: Navy - Brand: DESCENTE - Model name: DESCENTE BASEBALL Thank you for looking.