Is the Mackage Trey T-shirt good quality?

It is a solid cotton long-sleeve tee with a chest pocket. The fabric is basic cotton, so the value sits in the Mackage branding and cut rather than in technical fabric.

It is a standard crew-neck long-sleeve cut. Sizing runs from small through plus sizes, so check the size chart before ordering if you are between sizes.

Can I wear it under a jacket?

Yes. The solid cotton crew neck is thin enough to layer under a Mackage jacket or a coat without bulk at the collar.

What colors and sizes are available?

The listed color is black, and sizes run from small up through plus sizes. Availability of other colors depends on the retailer.

How does it compare with other designer long-sleeve tees?

It competes with premium basics from labels like Rag & Bone and Vince. Those often use finer cotton or modal blends, while the Trey stays with plain cotton and a visible brand.