Here set of free apparel mockup that will help you showcase your design with professional way. It can download freely and will give your design more realistic look before they printed.
The PSD file allows you to easily place your design via the smart objects. You just need to add your own design into smart object layer, and the mockup will automatically update. You can change the shirt color and adjust the highlights with ease.
Big thanks to Vectogravic for sharing this free psd template.