1.T-shirts
Some gentlemen like to tuck their shirts into the obvious belt, others think it's obviously nerdy. T-shirts are made up of various styles and come in various opinions. A lot depends on the t-shirt, belt, pants, shoes and overall style. Even if you're throwing a casual jacket over your T-shirt, there's no need to tuck into your shirt.
2.Polo shirts
Polo shirts have an even hem and can be left untucked, but for a more presentable look, tuck the shirt in and make sure to wear a matching belt. This style is especially worn by golfers. You can even go without a tie for a modern and casual look. You can throw a jacket over it, as polo shirts are great for layering too. Although these can be tucked, we recommend leaving them untucked to make your look more modern and casual when wearing it alone or with a jacket.
3.Business and dress shirts
We strictly recommend that you tuck these types of shirts into your clothing. Since you'll be pairing this type of shirt with shorts or a suit, it's advisable to tuck it in. Since you’ll be pairing this type of shirt with either a full suit or chinos and a blazer, it’s best to always have these tucked in. You've probably seen times when young people don't tuck into their shirts. You don't know when you're wearing a dress shirt and it looks sloppy. Never wear a shirt without a belt to any formal event unless it is designed to be versatile.
4.Short sleeve casual shirts
As the name suggests, casual - it means no tie, unless the occasion calls for it. Whether it's a standard casual shirt or aloha, keep it unbuttoned unless you're throwing in a blazer or bomber jacket. Casual shirts require no tie. Therefore, we recommend that you leave your hat unbuttoned for a modern and casual look. Whether it be just a standard casual shirt or cheery Hawaiian shirt, always have short-sleeved shirts untucked—unless being worn with a blazer or jumper, then it should be tucked in.
5.Long sleeve casual shirts
When you wear a long-sleeve casual shirt, you can either tuck it in or leave it untucked, depending on the formality of the occasion. For example, if you're going to a pub, you'll like to keep things casual and untucked into your clothes. Instead go for special occasions like dates or smart leisure activities. You can layer it with a bomber jacket for a cool and edgy look. For miracles, take this look to a special evening with a special friend for good luck.
Conclusion:
Whenever and whatever the occasion, whenever you're going to be tucking into your shirt, it's a must with a belt. This will keep your outfit looking neat and also ensure your shirt is properly tucked in when worn. It doesn't matter how many shirts you have in your closet, what matters is how you keep them. Use a military tuck to achieve a smooth, crease-free shirt front.