Protalus M-75 Landing Gear

Protalus M-75 3/4 Length Orthotic Insoles for Fixed-Insole Shoes

The Smarter Fit for Fixed-Insole Shoes

The Protalus M-75 delivers the same maximum geometric correction as our flagship M-100 — in a ¾-length design built to sit right on top of your existing insole. No removal required. Whether your shoes have a fixed liner, a snug fit, or a wider forefoot, the M-75 gives you the full power of Protalus Alignment Technology without sacrificing comfort or fit.

Key Benefits

• Maximum Alignment — Deep stabilizing walls at the heel guide your foot through its ideal motion sequence from the moment your heel strikes the ground to the moment you push off
• No Removal Needed — ¾-length design sits on top of your existing insole, making it compatible with shoes where the factory liner can't be taken out
• Clinically Proven Technology — Features the same Protalus Alignment Technology clinically studied to correct walking mechanics and reduce compensatory stress throughout the kinetic chain
• Plantar Fasciitis Relief — Addresses the leading mechanical cause of plantar fasciitis by correcting on-axis (ankle) loading with every step
• Wide Forefoot Fit — Designed for average to wide feet (up to 4E), with a profile that accommodates higher-volume shoes without crowding the toe box
• Comfortable for All Arch Types — Works for flat feet and high arches alike, delivering structural correction rather than just cushioning

Who Are the M-75 Insoles For?

The M-75 is the right choice if you:

• Have shoes with a non-removable or fixed factory insole
• Need maximum alignment correction but have a snug, narrow, or higher-volume fit
• Experience plantar fasciitis, knee, hip, or lower back discomfort linked to foot mechanics
• Have average to wide feet (up to 4E)
• Want the power of the M-100 in a lower-profile, ¾-length format

Product Specifications

• Support Level: Maximum
• Length: ¾-Length (sits on top of existing insole)
• Wall Depth: Maximum heel geometry
• Best For: Dress shoes, cleats, ski boots, and any shoe with a fixed or non-removable liner
• Foot Width: Average to wide (up to 4E)
• Footwear Requirement: No removal needed — works with fixed insoles

Try Them Risk-Free for 90 Days

Slip them into your shoes and take a few steps. 95 out of 100 people keep theirs. If your body doesn't feel the difference, we'll refund every cent — no questions asked. Free shipping included.

Need full-length coverage?

If your shoes have a removable liner and you want maximum wall depth from heel to toe, the M-100 is your best match.