You can mix sizes. Please leave me a message after you place an order informations Application: Men Jersey: 100% Polyester Pants: 20% Polyester 80% Lycra Pad: Newest 19D GEL Pad Function: Breathable/Quick dry/UV protection/Compression Feature: 1.light and quick dry, Breathable. 2.Side of the Jersey mesh ventilation 3.Brand kids pad ded more comfortable. 4.Elastic tight fabric, more suitable for sports 5.Clothes and pants all with anti-slip belt, more suitable for sports. Note: We can mix the size by yourself, but need leave a comment Like "Jerseys XXL and Pants XL''If you do not need a brand LOGO, you can leave a message. Custom: We can make your own custom design:size/colour/logos you like,Or add a logo. We also provide custom with pro team cycling clothing what you can find. Welcome to contact us to get more information!