Blending increased protection on the front and increased breathability on the back, the MILLE GTS Spring Fall Vest is more versatile than any MILLE Vest we’ve ever produced. It features 2 new technologies: a windproof, waterproof, and thermal membrane from our new AIRBLOCK line across the front and sides and a rear panel of our new VENTAMESH textile. This has aggressive breathability and heat-dissipation to maintain the ideal personal microclimate.