The FP Insoles Gamechanger Elite features a dark grey camo design and uses patented Footprint Insole Technology with a new construction method. These insoles offer enhanced arch support and are 2-3 times more durable than the original Gamechanger Custom Orthotics, thanks to a TPU top layer. The latest Comfort Plus foam is soft, shock-absorbent, and performs well in all temperatures. They range from 5mm at the toe to 7mm at the heel and can be trimmed for a perfect fit. To customize the fit, heat them in a preheated oven at 250F for 8-10 minutes, allowing the arch chamber to inflate. After that, place them in your shoes and walk around until they cool. The typical break-in period is 1-3 days.