You decide how you want to shop:
Buy ONE Shirt
→ You’re choosing the Buy One, Give One deal.
We’ll give a shirt for the one you buy.

Buy TWO Shirts
→ You’re choosing the Double Up deal.
You’ll get 50% off the second shirt — applied automatically at checkout.

Buy THREE or more Shirts
→ You’re doing both.
One of the first two shirts will be 50% off. Every additional shirt would be counted as part of the Buy One, Give One Promo, meaning we will give a shirt for every shirt you buy after the two.

Again
Buy 1 = we give 1.
Buy 2 = you get 1 half off.
Buy 3 or more = you get 1 half off + we give a shirt for every shirt you buy after the two.