The Kardashians were their usual glam selves Christmas Eve at Kris Jenner’s annual party. But on social media, they shared Christmas Day throwback pictures that featured decidedly less sparkles.

According to a tweet from Khloe Kardashian, the family has an annual tradition of wearing matching Christmas pajamas. Her Instagram gave a small glimpse into this year’s pattern with pictures of her and nieces and nephew North, Penelope and Mason.

The entire family pitched in, however, to give fans a look back into some of their matching outfits from years past.

On Thursday, Kim shared a very adorable throwback from her, Kourtney and Khloe’s childhood. (Note: Kim and Kourtney appear to be wearing dresses rather than pajamas so it seems like maybe the pajama-specific tradition kicked in a bit later. Note No. 2: Baby Khloe rocks.)

The same day, Kylie shared a throwback of her and Kendall in pajamas from around their early teen years:

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