How does the mock neck fit compared with a crew neck?

It sits higher on the neck, closer to a turtleneck but without the fold. The body is cut slim, so it hugs the torso more than a standard crew-neck tee.

Can I wear it under a blazer or suit jacket?

Yes. The collarless mock neck sits flat under a jacket and gives a modern alternative to a shirt and tie. It works best with a slim or tailored jacket.

Is it warm enough on its own?

It is a long-sleeve top, so it covers more than a short-sleeve tee, but it is not a sweater. Treat it as a base or mid layer in cold weather and a standalone top in mild weather.

Who should avoid the slim cut?

Shoppers who want a relaxed or boxy fit, or who size up for chest and shoulder room, may find it close-fitting. Check the measurements if you are between sizes.

Does it work for formal occasions?

It reads smart-casual, not formal. Without a collar it is out of place where a dress shirt is expected, but it suits dinners, offices with relaxed dress codes and evenings out.