The design and features of children's suits can vary according to different styles and age groups. Here are some common designs and features of children's suits:

Comfort: The comfort of children's suits is an important consideration. Designers usually choose soft, breathable and sweat-absorbing materials to ensure children's comfortable wearing.

Variety: Kids sets can include a variety of different styles such as jumpsuits, overalls, jeans, tracksuits, and more. Designers will also continue to innovate in colors, patterns and details to meet the different needs and tastes of children.

Safety: The safety of children's suits is also an important consideration. Designers usually choose materials that meet safety standards and ensure that details and treatments of clothing comply with relevant regulations to protect the health and safety of children.

Practical: Kids suits need to be practical so that kids can wear them for different occasions and activities. For example, tracksuits are great for kids for outdoor activities and jumpsuits are great for keeping warm on cold days.

Decorative: The decorative nature of children's sets is also an important consideration. Designers often add embellishments such as appliqués, embroidery, sequins, etc. to the garments to add fun and appeal to the kids.

In conclusion, the design and features of children's suits need to meet the needs and tastes of children, while ensuring their health and safety.