An elastic cap is a type of headwear that fits snugly around the head, typically made from stretchy materials like elastic, spandex, or cotton blends. It's designed to provide a comfortable, flexible fit that adapts to various head sizes.

Features
1. Stretchy material: Allows for a flexible fit that accommodates different head sizes.
2. Comfortable: Provides a snug, comfortable fit that doesn't feel too tight or constricting.
3. Versatile: Can be worn in various settings, such as sports, casual outings, or everyday activities.

Types
1. Sports caps: Designed for athletic activities, often featuring breathable materials and moisture-wicking properties.
2. Fashion caps: Styled for fashion purposes, available in various colors, patterns, and designs.
3. Functional caps: Designed for specific purposes, such as sun protection or warmth.

Benefits
1. Convenient: Easy to wear and remove.
2. Adaptable: Fits various head sizes.
3. Comfortable: Provides a snug, comfortable fit.