Kourtney Kardashian and Scott Disick's kids don't have kid clothes ... they have hypebeast designer-wear that would break most people's bank! No Oshkosh, no Garanimals, no Gap -- these kids where Gucci and Balenciaga!

Kourt took Mason, Penelope and Reign to see Lego Movie 2 Saturday evening as the rain poured down in LA so do they grab their cute kid umbrella and rain boots? No! Six-year-old Penelope throws on her $520 Gucci nylon zip-up and her $275 Balenciaga sock sneakers, as did Reign, 4, and Mason grabs a logo-heavy Champion hoodie with his gold chains tucked safely underneath.

Who says Keeping Up With the Kardashians isn't REALITY TV?!