Install:
Extract the PlayClub_Data folder of the 7z into your PlayClub main directory, if asked to merge, say yes.
Uninstall:
Remove these files:
PlayClub_DataStreamingAssetsWearCosroy12_cos002.unity3d
PlayClub_DataStreamingAssetsWearHeadgearroy_head_01.unity3d
PlayClub_DataStreamingAssetsWearSocksroy12_socks_02.unity3d