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
Vans Ultracush Lite Shoes Womens 6 Black Lace Up Athletic Casual Sneakers | eBay
Replacement Vans PRO Ultracush Insoles GK-1801
Vans Old Skool UltraCush Lite 'Black' - VN0A2Z5W186 | Solesense