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
The Ins and Outs of Vans' ComfyCush - Sneaker Freaker
Vans Pop Cush, Ultracush Pro & Comfycush Insoles Replacement - IGS
Replacement Vans PRO Ultracush Insoles GK-1801
ComfyCush | Shop ComfyCush Shoes at Vans
FOOTSOULS for Old Skool and SK8-HI Vans – FEEL YOUR SOUL
FOOTSOULS for Old Skool and SK8-HI Vans – FEEL YOUR SOUL
Vans Pop Cush, Ultracush Pro & Comfycush Insoles Replacement - IGS
Vans Pop Cush V3 Insole in Purple – M I L O S P O R T
FOOTSOULS for Authentic, Era, and Slip On Vans – FEEL YOUR SOUL
ComfyCush | Shop ComfyCush Shoes at Vans
FOOTSOULS for Authentic, Era, and Slip On Vans – FEEL YOUR SOUL