Let's talk about the THWEI blazer. First off, the material is surprisingly thick and feels decent for the price. It's 80% polyester and 20% viscose, so it's not luxury, but it doesn't feel like paper either.
The fit is where things get tricky. Some buyers report sizing issues - sleeves too long, body too boxy. I'm 5'11" and 180 lbs, and the Large fit me okay except for the sleeves (about an inch too long). Not a dealbreaker, but annoying if you're picky.
Where this jacket shines? Summer wear. The lightweight fabric makes it bearable in heat, and the mandarin collar gives it a unique look. I've worn mine to outdoor weddings and didn't sweat to death - big plus.
Now the downsides: The construction quality is hit or miss. Some jackets arrive with loose threads or poor stitching. Mine held up fine, but I've heard horror stories about seams coming apart. Also, don't expect it to look as polished as the product photos - it's definitely a budget blazer.
Final verdict? For $50-60, it's an okay casual blazer if you get lucky with sizing and quality control. Great for costumes or occasional wear, but don't expect it to replace your tailored suits.