Leggings are traditionally read as comfort and freedom of movement. Because they cling, they can also stand for feeling seen exactly as you are, with nothing loose to hide behind.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.