Urd Wings

You manifest leathery wings, transforming into an urd. You gain the following benefits:

• Increase your Dexterity score by 1, to a max-imum of 20.
• You gain a flying speed of 30 feet. To use this speed, you can't be wearing medium or heavy armor.

(This is the exact wording from the XGE Bonus - Expanded Racial Feats by Adam Bradford)