Here's what I'd actually tell a friend before they hit 'add to cart':

• Regular fit if you want a clean line for layering. A denim jacket or overshirt sits better over a fitted tee.
• Oversized if you're lounging or want a streetwear silhouette. Just balance it with slim bottoms—skinny jeans or joggers.
• Both if you rotate. One of each covers most scenarios.
• Ignore the size chart 'recommended' size if you're between sizes. Go by your chest measurement and the garment's actual measurements, not the letter.
• Check the return policy. Windbar has a 30-day return window on unworn tees, so you can try both and send back what doesn't work.