Twitch Prime has just dropped exclusive skins for Mirage and the Kraber today and is the last of free skins to come this season. The newest skins known as Holo Man Mirage and Night Watch Kraber will be available to claim from Twitch Prime exclusive rewards from September 9th to October 9th.

You can get the skins by following the link directly to the Apex Legends Twitch Prime Exclusive rewards page: https://twitch.amazon.com/prime/loot/apexlegends