Greenlet is a free theme for WordPress created by Greenlet Team.
Greenlet is an extremely fast, lightweight best SEO WordPress theme made for blogs, personal portfolio, business, and Woocommerce Stores. While Greenlet setup is quick and easy, it provides dozens of options for customization without affecting the speed and size of your website. Features 100/100 Google Page Speed score | Extremely Lightweight (~25KB) | Schema Markup Added | No jQuery | 12 Column Design System | 8 Predefined Layouts (extendable) | Unlimited Post Layout | Unlimited Header and Footer layout | Pagination ( Default, Numbered, Ajax, Load More, Infinite Scroll ) | ML Support | RTL Support | Visual style editor | Mobile Ready | Breadcrumb | Popular plugins support including WooCommerce | Theme Presets and so much more.
(Description "Greenlet" Theme from wordpress.org)
You can download Greenlet for free via the provided download link and include it into your themes folder of your WordPress installation. Also you can directly search for it in the WordPress admin interface in the themes section and install and activate it from there.
More information, screenshots and reviews of Greenlet Theme can be found here.