leggings - very tight trousers made from a material that stretches easily, sometimes worn under other clothes;
trousers - a piece of clothing that covers the lower part of the body from the waist to the feet, consisting of two cylinder-shaped parts, one for each leg, that are joined at the top;
shirt - a piece of clothing worn, especially by men, on the upper part of the body, made of light cloth like cotton and usually having a collar and buttons at the front;
tracksuit - a loose top and trousers, worn either by people who are training for a sport or exercising, or as informal clothing;
trainer (UK also training shoe; US sneaker) - a type of light, comfortable shoe that can be worn for sport.