Genesis 3:8-10, 21

And they heard the sound of the LORD God walking in the garden in the cool of the day, and Adam and his wife hid themselves from the presence of the LORD God among the trees of the garden. Then the LORD God called to Adam and said to him, “Where are you?” So he said, “I heard Your voice in the garden, and I was afraid because I was naked; and I hid myself.”

Also for Adam and his wife the LORD God made tunics of skin, and clothed them.