Dr. Scholl's Heavy Duty Support Insole Orthotics, Big & Tall, 200lbs+, Wide Feet, Shock Absorbing, Arch Support, Distributes Pressure, Trim to Fit Inserts, Work Boots & Shoes, Men Size 8-14, 1 Pair

Searching on Amazon... Some of the basic Dr. Scholls trim-to-fit ones (e.g. Run, Work) claim they go up to size 14, including the "Heavy Duty: Specially Designed for Men 200 lb + | Wide-Widths | Tall," and those seem to be commonly available in Walmart and drugstores, if you want to go buy them in person or use your CVS/Walgreens rewards on them. Some Spenco models have their largest size 14-15.5, but I'm seeing Amazon reviews claiming that Spenco has gone downhill recently. The Walk-Hero brand makes 14-14.5 and 15-15.5. "Memory foam" makes me think these will be cheap squishy cushions, not sculpted supportive EVA foam, but these are the only specifically "wide" insoles I came across: https://www.amazon.com/Happystep-Pair-Wide-Memory-Insoles/dp/B07H3BTW8D?th=1 But I hope someone with more firsthand experience with insoles on the large end of the scale comes along to give you more tailored advice--you don't want too-small insoles sliding around in your shoes. IDK, does Reddit have an active big & tall sub?