Alpinestars lunar short sleeve jerseythis lunar jersey from alpinestars has been developed for performance riding and is made from an advanced polyester fabric a moisture wicking and quick drying fabric to keep you cool dry and comfortable all day superior ventilationthis short sleeve jersey has open mesh inserts for superior ventilation an elongated lower back profile to help maintain its fit when riding and an mp3smartphone compartment with internal headphone conduit for an easy and secure