6-1/2 x 5-1/8 inches. Better for the environment: ultra light bag, 25% less plastic (when compared to regular Ziploc sandwich bags); made with wind energy (Ziploc evolve bags are manufactured with a combination of renewable wind energy and energy from traditional energy sources). Secure Ziploc Seal: Easily closes together for a secure seal. Trusted Ziploc Quality: Secure seal, ultra light bag, proven freshness. We here at Ziploc understand that this product is only one step in helping make things better for the environment - but, it is a step in the right direction. Ziploc Evolve is committed to the environment and we hope to partner with you to help better preserve our world for future generations - one step at a time! New Ziploc Evolve Bags are better for the environment and offer trusted Ziploc quality (when compared to regular Ziploc sandwich bags)! Made from 25% less plastic (when compared to regular Ziploc sandwich bags) - using less plastic means using less limited resources to make our bags. Manufactured using renewable wind energy (Ziploc evolve bags are manufactured with a combination of renewable wind energy and energy from traditional energy sources) - using wind energy means using a cleaner energy source. Manufacturing of bag requires less energy - using less energy is a step toward reducing greenhouse gas emissions.