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 if anyone else wants to replace their standard insoles for the Ultracush ones. : r/Vans
Vans PRO ULTRA/ POP cush Insoles Arch Support Height Increasing Inserts US | eBay
Aluminum Insoles for Custom Vans Roller Skates - Etsy
6 Best Insoles For Vans – Replacements + Removable in 2024 | FashionBeans