Found a site that sold Vans Ultracush insoles and put them in my Sk8 Hi's. Such a good decision. The difference in thickness is striking. Link in the comments for the website
Insolesgeeks replacement Pop/ultracush insoles a review. : r/Vans
Vans Popcush Padded Insoles | Snow V3 | Gear West
Skate Half Cab (Nick Michel) Brown / Navy VBU – Uprise Skateshop