Is the Sealup Monforte actually waterproof?

Yes. Sealup builds it from 100% waterproof cotton, so it sheds rain on its own without a coating you have to renew often. Seams and the concealed placket are the areas to check if you plan to wear it in heavy, sustained rain.

How does IT 52 translate to US sizing?

IT 52 is roughly a US 42 chest, or a medium-large in most American brands. The fit is regular, so it layers over a shirt or light knit; size up if you want to wear it over a suit jacket.

The coat itself. There is no hood, liner or garment bag listed, so plan on a separate umbrella and a hanger for storage.

How does it compare with a Burberry or Mackintosh trench?

It sits in the same luxury tier but leans technical: waterproof cotton rather than gabardine, and a plainer, logo-light design. It undercuts typical Burberry trench pricing while offering comparable Italian construction.

How should I care for waterproof cotton?

Sponge off spots and hang it to dry away from direct heat; avoid frequent machine washing, which dulls the water repellency. Have it professionally cleaned when needed.

Is the Sealup Monforte worth it?

It is a luxury Italian trench in waterproof cotton, so you pay for construction and fabric rather than technical features. If you want a tailored rain coat that works over a suit, it earns its place; if you need a packable shell, a synthetic raincoat does more for less.