Training kit
When the grip on a training shoe needs attention
Look at the outsole before the next session, especially if a shoe has started sliding on a surface where it previously felt secure.
Separate dirt from wear
Turn the shoe over in good light. Mud, small stones or debris may cover the tread, while some areas may have worn smooth. Clean the sole according to the manufacturer's instructions and let it dry before reassessing it. Do not use sharp tools or strong chemicals that could damage the material.
Compare the two shoes and look at the whole contact area, including heel and forefoot. Uneven wear is worth noticing, but its pattern alone does not provide a diagnosis of your walking or running technique. If wear accompanies persistent pain or instability, get appropriate professional advice.
Check the rest of the shoe
Grip is not only a tread question. A loose upper, damaged fastening or separating sole can let the foot move unexpectedly even when the rubber looks substantial. Look for cracks, peeling layers and areas where the sole is coming away from the upper. Stop using a shoe with a structural problem until it has been assessed or replaced.
Think about where the problem occurs. A shoe intended for indoor training may be unsuitable for a muddy field, and an outdoor sole may collect debris that should not be brought into a studio. Ask the venue about its footwear requirements. Do not test a suspect shoe with a fast turn or jump to see whether it will hold.
Replace based on condition and use
There is no single replacement date that fits every shoe and wearer. Frequency of use, surface, storage and cleaning all affect condition. Keep a simple note if you are unsure whether wear is changing quickly, and inspect more often when a pair is used for several different activities.
If grip remains unreliable after appropriate cleaning, or if the tread and structure are visibly deteriorating, choose another suitable pair. A new shoe still needs a fit check with your training socks. Do not assume the same size in a redesigned model will feel identical. Above all, do not use fresh footwear as a reason to continue on an unsafe surface: ice, algae and loose material can defeat an otherwise appropriate sole.
