Constructed from an advanced poly-fabric to promote moisture wicking & temperature control. Long sleeve design offers optimal arm coverage. Low open collar design for ease of entry, riding comfort & regular fit construction. Strategically positioned open mesh inserts on sides & back give enhanced breathability, especially when wearng a backpack. Elongated lower back profile helps maintain fit. Convenient internal terry cloth patch located on waist for cleaning lens. Concealed rear zippered easy-access pocket on side hem for peace-of-mind closure. Internal headphone conduit to house MP3 player or phone with hook on collar to securely fasten headphones.