Whether you're pedaling along a southwest desert mesa, or charging steep lines in the northern Rockies, the Alpinestars Alps 6. 0 Long-Sleeve Jersey will keep you dry, comfortable, and protected thanks to it's breathable polyester fabrics and long-sleeve coverage. The main fabric also features four-way stretch fibers for excellent freedom of movement on the bike, and a soft, stretchy feel against the skin. When seasons change and weather gets cooler, layer it on over your jersey on chilly mornings and brisk descents to stay warm without overheating.