The Diesel Diegos K27 L/S T-Shirt is a white tshirt carried in the Rizore menswear catalog at $21.
Body length matters: the hem should cover the waistband without reaching the seat. White shows the true silhouette and every fold, which makes the fit check unusually honest.
At $21 this sits at an entry-level price point where cut matters more than fabric weight. Upload one full-body photo and the tshirt is rendered on you in seconds — no account, no checkout here, and the buy link goes straight to the merchant that stocks it.
The useful clue is how the jersey falls from chest to hem. More weight usually gives a straighter line; lighter jersey follows the body more closely.
A crewneck tee is set by shoulder point, sleeve opening and body length. The neck should lie flat, while the hem should cover the waistband without swallowing the seat.
Let the tee set the base proportion. A shorter, wider body works with higher rises; a longer, slimmer body layers more cleanly under tailoring.
In the AI fitting room, compare shoulder drop, sleeve width and hem length. Check whether the body falls cleanly or clings where you do not want it to.

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