Two Puma mock-neck (slightly higher than a crew neck) long-sleeved shirts made of a body-hugging, stretchy material, one white and one black. They have been opened for photography. The white one has 15% increased heat retention and is slightly thicker than the black one. Both offer UPF 50+ UV protection. The white one has thumbholes on both sleeves, designed to prevent sunburn on the back of the hands (see photo 4). Perfect for running and walking in the coming seasons.