Alpinestars Viper Air Men's Street Motorcycle Jackets - Black/White / Small With unsurpassed levels of internal climate control thanks to extensive mesh paneling, the Viper Air Textile Jacket incorporates new evolutions such as two-way sleeve zippers and a mesh collar for a formidable summer riding jacket. Pre-curved sleeves together with a versatile D-ring waist fit, this jacket features excellent comfort benefits as well as a removable windproof inner vest lining so you can ride in a variety of weather situations. Constructed from hard-wearing 600 denier poly-fabric shell reinforced with polyurethane for excellent tear and abrasion performance. Extensive mesh panels on front and rear panels for unsurpassed airflow performance. New two-way sleeve zippers offer safe closure as well as allowing you to regulate air intake.