What should you not wear when cycling?

Choose comfy clothes that don't restrict the movement of your arms and legs. Cycling in clothing like jeans, or tight-fitting dresses or trousers, can restrict how you use your muscles. Some clothes have thick and bulky seams which can rub and make you sore. Also don't wear something with too tight a waistband.
Polyester fabrics provide breath-ability and help to wick or pull the moisture away from your body so you don't feel cold and wet as you are cycling.

Do and don'ts after cycling?
Here are the do's and don'ts for recovering from a long bike ride.
Re-hydrate with water, not beer. 
Refuel with clean nutrient dense foods, not processed junk.
Stretch or do some foam rolling, don't fall asleep on the couch.

Which shirt is best to wear on a bike ride?
You can save on bike clothing by wearing almost any comfortable outdoor or athletic clothing (think breathable, moisture-wicking) when you ride, though you'll want to add some reflective wear or reflective elements if you do. This is less of an issue where vehicles aren't around, like on a mountain-bike-only trail.

How can I look stylish while cycling?
How to look good on a bike: 5 road cycling fashion rules you should never break
Get your helmet right
Consider sock height
Embrace tights and leg warmers
Think about your overall look
Don't forget to purchase a custom t-shirt from RGMJ Brands Apparel to make a statement on for your next bike ride.