Looking for a lightweight mesh summer riding jacket" Check out the Spidi Solar Net. 
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Protected: SPIDI ? SOLAR NET & SOLAR NET WINDOUT
SPIDI Solar Net and Solar Net Windout are the summer motorcycle jackets designed to meet the needs of a variety of different bikes. They offer EN1621-1 certified Warrior Lite protectors on shoulders and elbows and the possibility to add the optional thermal liner and the H2Out waterproof membrane. Tailored using highly abrasion resistant mesh fabrics, they both allow for a superior airflow so to ride more comfortably and longer.
SPIDI dedicated a lot of resources to find the best materials to equip riders and therefore created a standard to identify the best fabrics: TexTech. The peculiar TexTech has water repellency, perspiration, shear strength and abrasion resistance. Each supply is tested by the SAFETY LAB to ensure the required performances. The TexTech technology is applied to all the products with textile materials, except for the H2Out category. All these fabrics are studied by SPIDI in collaboration with the best producers in the world. The lifestyle of people traveling on two wheels is dynamic and active, it is important to stay protected wearing the best materials, TexTech is the answer. SPIDI ? SOLAR NET WINDOUT

Sizes: S ? 3XL

Colors: Black

Price: North America $219.90, Europe ?189.90
More info: https://www.spidi.comproductt240-011
SPIDI ? SOLAR NET

Sizes: S ? 5XL

Colors: Black, Black/...