"No Quarter"
Literary: no pity or mercy —used to say that an enemy, opponent, etc., is treated in a very harsh way "The soldiers showed/gave no quarter to the enemy."
Front: Red Flag
Back: FBB Standard on US stripes with "No Quarter"
**Note: Sizing seems a little on the small'ish side. So if you're an XL, you may want to get a 2XL so you don't feel as fat.