The 12-month indoor benchmark
The widely-cited rule of thumb is twelve months for indoor play at 4 hours per week. Scale up or down against your actual hours. Outdoor halves the lifespan because asphalt and concrete eat outsoles fast.
Cushioning compression — the silent killer
Cushioning foams compress over time, even if the shoe still looks fine. After 12-18 months of regular play, energy return drops by 20-35%. You feel it as ‘still bouncy, but less spring’ or as creeping joint fatigue late in sessions.
Outsole wear — the obvious one
Look at the herringbone or multi-direction pattern. If the lugs are flattening or shiny, traction is compromised. Once traction goes, you slip on cuts and your ankle and knee compensate. Replace before that point — the dollars saved aren’t worth the injury risk.
Use the calculator
Our replacement calculator gives you a months-to-replace estimate based on hours/week, surface, weight band and play style. It’s not gospel — but it’s a better baseline than ‘whenever I notice.‘
Insoles first, shoes second
If your shoes still have outsole life but feel flat, swap the insole before replacing the shoe. A $30 athletic insole can buy you 4-6 more months of comfort. Worth it.
The big-man caveat
Heavier players (220+ lbs) compress cushioning faster. Halve any benchmark above. This is also why we recommend deep-cushion platforms (Cushlon 3.0 + Zoom, Boost) for bigs — they have more compression headroom before going flat.