Heavier runners load the midsole harder — foam that feels plush at 65kg can bottom out at 95kg, and it breaks down faster too. The shoes that work are built with more stack to compress into, firmer or higher-density foams that don't collapse, wide stable platforms, and outsoles that survive the extra load. The list below comes from SoleHunt's engine run with a 100kg, max-stack profile — the durability and cushioning signals both weight the recommendation toward shoes that hold up. Expect to replace shoes on the earlier side of the usual 500–800km window regardless of the model.