Final answer:
The question about Felix giving Nic an old tunic for an arena event with Radulf cannot be answered specifically due to insufficient context. The provided references do not provide information on these characters or the situation.
Step-by-step explanation:
The question seems to be referencing a scenario where a character named Felix gives Nic an old tunic to wear in the arena with Radulf. However, there is insufficient context provided to determine which specific literary or historical text this question is derived from, or to deliver an accurate and informative response. The cited references from LibreTexts, Nora's passages from a play, and information about Roman attire do not give a clear indication of who Felix and Nic are, nor the situation involving Radulf. The texts instead discuss the cultural and historical significance of clothing in Roman society, the symbolism and expectations around the wearing of togas and other garments, as well as the use of costumes in theater.