Stretchy (adjective)

1. Able to be stretched or extended without breaking or becoming misshapen.
2. Capable of being stretched to a greater length without tearing.

Origin:

From the english word "stretch" meaning "to extend or lengthen something".

Examples:

1. This fabric is stretchy, so it will fit comfortably.
2. The stretchy band made the hat fit snugly on his head.
3. The elastic waistband is stretchy.
4. These stretchy pants are perfect for yoga.
5. The stretchy material allowed for a perfect fit.