Summary A new, proprietary laceless system for all kinds of shoes, including dress shoes. Its is designed to be printed with flexible filament only, such as ninjaflex. It's a very simple design and laces very easily. since it's flexible, it is one size fits all. Never tie your lacings again! Print Settings Rafts: Doesn't Matter Supports: No Infill: 20 - 30 Notes: Orient it flat so you won't have to print supports