FTD ApparelMen's Straight Outta [Your Text Here] Custom Personalized T Shirt

Does the tag in picture comes on the bottom of t-shirt

Is it one shirt or two? When I go to customize, it asks me to make 2 for a white shirt and black shirt.

how do i add text to my shirt

i'm male 70kg, 170cm. What size should i take? I would like it to be a lil bit baggy