Running shoes get replacement mileage rules; walking shoes — doing equal daily duty at lower drama — die unnoticed, their cushioning long dead under an intact-looking upper. The daily pair’s expiry signs, from sole forensics to the body’s own memos.

The Sole Forensics

Flip the pair: tread worn smooth at heel-strike and push-off zones is the visible clock (uneven wear patterns — one edge bald — also narrate your gait), and midsole compression wrinkles (the fine lines in the foam sidewall) are the cushioning’s death certificate. The upper’s condition is marketing; the sole is testimony.

The Twist and Press Tests

The twist test: hold both ends and wring gently — a supportive shoe resists; a done shoe twists like a dishrag. The press test: thumb into the midsole — springy pushback means alive, memory-foam-style dents mean deceased. Two seconds each, no mileage log required.

The Body’s Memos

The subtler signals arrive in you: new foot fatigue on standard walks, arch grumbles, the knee-and-shin whispers on unchanged routines (the dead-shoe symptom pattern from the running files, walking edition). New aches plus old shoes: replace the shoes before investigating the body.

The Replacement Rhythm

Daily walking pairs run roughly 500-800 kilometers like their running cousins — for the daily walker, that is six-to-twelve months (write the purchase month inside the tongue; future-you forgets). The rotation trick extends everything: two pairs alternating outlast three sequential, and the retired pair’s second career (gardening, errands-lite) begins immediately.

Read the soles, run the twist test, believe the body’s memos, date the tongue. Walking shoes die politely — the forensics are how you catch it before your knees file the report.