Detail this asset from Unity Asset Store: Original Link
This is a paid asset, but we’ll share Off-Canvas Menu Free for you. Enjoy!!!
Off-Canvas Menu v1.1
The Off-Canvas Menu package allows you to create beautiful, native looking, customizable mobile menus in minutes. The menu reacts just like a native mobile menu, transitioning smoothly in and out of view and reacting to partial drags appropriately just as you would expect an off-canvas menu to in a real native mobile application. With Off-Canvas Menu it’s extremely easy to add your own menu headers, items and separators – and because it’s built completely in uGUI it’s simple to add your own completely custom menu items as well.