MedicalSoles Silver Insoles

The Silver RX+ is Medical Soles' entry-level full-length insole (4.3 stars on Amazon), built around a semi-rigid arch support, metatarsal pad, and deep heel cup — the structure that helps keep the foot aligned and limit excess pronation. Reviewers consistently praise the firm-but-not-hard feel and that they're cut to size with no trimming. One honest note: it's flexible support, not rigid — if you need a maximum-control orthotic, the Platinum version is the step up.