Alpinestars mesa ls jerseythis mesa jersey from alpinestars has been developed for mountain biking and is made from an advanced poly fabric a moisture wicking and quick drying fabric to keep you cool dry and comfortable all day this long sleeve jersey has extended open mesh inserts on the back and sides for superior ventilation and a low open collar design keep valuables safeit also features an elongated lower back profile to help maintain its fit when cycling and a convenient internal cloth