Generally speaking, there are three occasions involved by business people: official occasions, social occasions and leisure occasions. Official occasion, the so-called official occasion refers to the occasion involved in the performance of official duties, it generally includes the office, in the negotiating room and out of the performance of official duties and so on. The basic requirements of dressing for official occasions are to pay attention to conservative, and suits, skirts and uniforms should be worn. Also consider pants, long skirts and long-sleeved shirts.

White Tie （Ultra – Formal）

The white-tie is the most formal and stuffy of all dress codes, setting the dress code very strictly. It usually refers to a ceremony or award ceremony, a formal dinner, etc. Oscar and Nobel belong to this category.

Black or dark blue tuxedos with a silk front cut above the waist.

2. White shirts with stiff collars, shirts must be crisp, linen, cotton or convex cotton will do.
3. Opt for silver or gold cufflinks, and make sure they’re French.
4. White tie in the same texture as the shirt.
5. A white waistcoat with the same texture as the shirt.
6. Black silk socks or stockings.
7. Black formal patent leather shoes.

Women are supposed to wear floor-length evening dresses in principle, but there are far more options than men.

Black Tie

A Black Tie is much more common than a White Tie. This Victorian social party differs from White Tie in dress, especially for men. Unlike White Tie, which has extremely strict rules, Black Tie has more possibilities in terms of details.

Mr.

1. Top — Single-breasted suits (double-breasted are uncommon here) should have a silk collar surface (often with grossin and satin) and peak Lapel and shawl lapel are more formal than Notched lapel.

2. Pants — Two trim ribbons are preferred for side seams.
3. Shirts — Dress shirts with wing collars and French cuffs are required, some with pleats on the front.
4. Bow tie — Black silk bow tie, preferably in the same texture as your suit collar.
5. Socks — Black silk or wool socks.
6. Leather shoes — Black patent leather shoes, if you really don’t have these, you can choose a high-quality black calf leather shoes.
7. Waistcoat and waist seal — Although you can see them on some Black Tie occasions, they are not necessary.
8. Pocket towels — linen, silk, or cotton are ok, but not necessary.

Ms.

As with a White Tie, it is best for women to wear a floor-length evening dress, sometimes down to calf length. And styles have changed in many ways today, as fashion changes, sometimes giving up some conservative styles and choosing something special can actually be a bonus, this is especially common on the red carpet dress of female stars. Headgear and late outfit bag are the place that ladies should work hard, wonderful shoe shoe and deserve to act the role of collocation can let modelling add luster.

Black Tie Optional

When you are invited to someone’s wedding, you will find the little line “Black tie optional” on the invitation. In this situation, men can wear a black tie instead of a bow tie, and women can wear other accessories.

Business Casual

Since the 1990s, this kind of dress code has become rapidly popular among white collars in the West, especially in the U.S. and Canada. Many IT workers in Silicon Valley were early adopters of this dress code. Different from formal business wear, business casual does not have a clear definition, which leads to different interpretations of this dress code in different countries, regions, and even among enterprises.

On the whole, the following description is accepted by most people:

For men, collared shirts (such as polo shirts) and cotton pants are standard. For women, it’s a shirt and pants. Note, however, that jeans or denim are not considered sloppy, and most businesses consider this a sign of caution.

Smart Casual

For most of our lives, this is probably one of the more common types of dress code. You may receive this request if you buy theatre or football tickets with a box or lounge.

This kind of dress code is described as ill-defined on Wiki. Different countries and regions have different understandings of this concept. But the situation that combines different fashionable dress publication and actual encounter, also can sum up a few rules.

1. Traditional: Wear a suit without a tie at work, or even a full suit, with a blazer and trousers. The cloth is wool mixed with cotton, silk, hemp or nylon, etc. The color is mainly dark grey and dark blue. To match with a suitable belt, shoes should be worn lightly (loafers).
2. Stylish: Fashionistas can adjust their suits according to their own taste, such as suit jackets with different pants, different styles of shirts and so on.
3. Dynamic: A sport blazer or jacket, paired with a polo shirt and khaki pants.

Casual: Simple and casual, such as a collared T-shirt and pants.

Women have a wider choice of smart casual, such as different women’s tops, accessories and bags. Anything that is not too casual can become a choice of collocation.

Sportswear/active wear

This is a little bit more explicit. For example, when signing up for gym staff to teach you how to use equipment, sportswear will be mentioned repeatedly. Dress comfortably when working out.

For non-professional athletes, sportswear refers to shorts, T-shirts, tennis skirts, POLO shirts and sneakers. Bras include sports bra and Jockstrap. In addition to these, special sports also include special equipment, such as swimsuits, surfwear and so on.