This question is being asked a lot on forums and blogs around the net. Lil Wayne has been wearing this tee all the time. This is one piece of clothing he wears almost every single day.There is a lot of rumour on the net but I will tell you for sure what brand the shirt is.
The tee is the Polo Ralph Lauren Classic Cotton Crew T-Shirt 3-Pack
The tee is a classic white t-shirt. You can use them as tees in the summer and undershirt in winter. There is a small Polo logo on the bottom of the shirt and this is why you will know for sure this is the right shirt.
Lil Wayne is 5′ 6″ (168 cm) heigh and weighs around 130-140 lbs (58-63 kg) and therefore has a small frame. Wayne is wearing a size small. The white tee comes in a 3-pack priced at $34.95
You can get the shirt here at Amazon.
Polo Ralph Lauren Classic Cotton Crew T-Shirt, 3-Pack
Available at Amazon