Right now at Under Armour they are offering up to 50% off Under Armour Outlet items during their semi-annual event. This includes sales and apparel. No promo code as needed since the prices are already marked.
Sort by price low to high and you can find the best deals- there are prices starting at $4.99.
Shipping is FREE on orders of $60+.
AND you can get FREE shipping when you enter your email in the pop-up window. Or you can scroll to the bottom of the home page and sign up for their e-mail updates.