### For a Casual Look:
1. **Classic Fit Black Shirt**: Choose a comfortable, classic fit black shirt. You can leave it untucked for a more relaxed vibe.
2. **Leather Belt**: Pair it with a slim black or brown leather belt.
3. **Jeans or Chinos**: Wear dark jeans or chinos. The belt adds a nice touch of sophistication.
4. **Casual Shoes**: Finish the look with sneakers or loafers.
### For a Business Casual Look:
1. **Slim Fit Black Shirt**: Opt for a slim fit black shirt and tuck it into your trousers.
2. **Dress Belt**: Use a sleek, fine leather belt that matches your shoes.
3. **Dress Pants or a Smart Pair of Jeans**: Choose a higher quality fabric for a sharper look.
4. **Dress Shoes**: Go with oxfords, derbies, or brogues in leather.
### For a Formal Look:
1. **Black Dress Shirt**: A well-fitted black dress shirt can be a great base for a formal outfit.
2. **Formal Belt**: Choose a thin, black formal belt with a subtle buckle.
3. **Dress Pants**: Pair with black dress pants for a monochromatic look.
4. **Formal Shoes**: Complete this outfit with a pair of polished black dress shoes.
### Accessorizing:
- **Watches**: A classic wristwatch can complement your outfit nicely.
- **Sunglasses**: For daytime events, a pair of stylish sunglasses can enhance your casual or smart casual look.
- **Jewelry**: Minimalistic jewelry like a silver or gold chain bracelet or rings can add an extra touch of style.
When choosing a belt, make sure it’s proportional to your body and the loops of your pants, and always aim to match it with your shoes for a cohesive look.
1000 × 2164
Source:https://www.amazon.com/Super-Belt-Formal-Professional-Attire/dp/B01JGRXCAW
801 × 890
Source:https://www.ebay.com/itm/134439287624?_ul\u003dCN
2417 × 1600
Source:https://jimmychoosandtennisshoesblog.com/2017/07/black-shirt-dress.html
574 × 535
Source:https://extremewrestlingshirts.com/products/dwayne-the-rock-johnson-championship-belt-black-wwe-t-shirt
2098 × 1500
Source:https://shop.mango.com/tw/en/p/women/dresses-and-jumpsuits/dresses/belt-shirt-dress_67035738
300 × 300
Source:https://www.etsy.com/market/black_belt_shirt
2000 × 2000
Source:https://www.etsy.com/market/black_belt_shirt
1000 × 1000
Source:https://www.amazon.com/Super-Belt-Formal-Professional-Attire/dp/B01JGRXCAW
326 × 221
Source:https://laticci.com/Black-Jeans-Brown-Belt
1125 × 900
Source:https://www.hockerty.com/en-us/mens-outfits/687-black-shirt-brown-pants/