Protalus M100 Insoles: Inside view of insole on top of bottom view, against a white background Orange and gray shoe insole with text about roomy/wide shoes and insole durability. Text: Protalus product features: Tri-Planar Alignment Technology, Dynamic Alignment Guidance, Deep Heel Cup & Arch Design, Patented Rebound Foam Image of a skeleton foot and insole with Protalus benefits listed. Comparison chart between Protalus and other brands on an orange background Woman running outdoors with Protalus advertisement about customer relief from various pain conditions. M-100 Size guide for shoe insoles with measurements on an orange background M-100 M-100

Protalus M-100

$64.95

Rated 4.6 out of 5
Based on 172 reviews

• For wider shoes with removable insoles
• Replaces your factory insole
• Universal fit for flat feet and high arches
Protalus Alignment Technology inside
• Proven to treat the leading cause of plantar fasciitis
• Will accommodate average to wide width up to size 4E
• Lasts up to a year


- +

Best for

wide sneakers, wide athletic shoes, shoes with removable insoles

Used for

Plantar Fasciitis

Knee Pain

Comfort

Shock Absorption

Anti-fatigue

Pronation

Supination

Flat feet

Product Features

Text: Protalus product features: Tri-Planar Alignment Technology, Dynamic Alignment Guidance, Deep Heel Cup & Arch Design, Patented Rebound Foam Text: Protalus product features: Tri-Planar Alignment Technology, Dynamic Alignment Guidance, Deep Heel Cup & Arch Design, Patented Rebound Foam

Heel Depth (mm)

29.5

Thickness (mm)

9.5

Protalus Alignment Technology delivers results like custom orthotics - for 90% less!

Read why our customers won’t wear anything else.

Insole Comparison

HEEL CUP DEPTH

24.5 mm

CUSHION

7.5 mm

SHOE TYPE

Removable Insole

SUGGESTED FOOTWEAR

Casual Shoe

HEEL CUP CORRECTION

Moderate

ARCH HEIGHT

22 mm

HEEL CUP DEPTH

24.5 mm

CUSHION

8.5 mm

SHOE TYPE

Removable Insole

SUGGESTED FOOTWEAR

Hiking Boot

HEEL CUP CORRECTION

Moderate

ARCH HEIGHT

22 mm

HEEL CUP DEPTH

29.5 mm

CUSHION

9.5 mm

SHOE TYPE

Removable Insole

SUGGESTED FOOTWEAR

Roomy Sneaker

HEEL CUP CORRECTION

Maximum

ARCH HEIGHT

24 mm

HEEL CUP DEPTH

29.5 mm

CUSHION

10.5 mm

SHOE TYPE

Removable Insole

SUGGESTED FOOTWEAR

Work Boot

HEEL CUP CORRECTION

Maximum

ARCH HEIGHT

24 mm

HEEL CUP DEPTH

24.5 mm

CUSHION

7.5 mm

SHOE TYPE

Removable Insole

SUGGESTED FOOTWEAR

Casual Shoe

HEEL CUP CORRECTION

Moderate

ARCH HEIGHT

22 mm

HEEL CUP DEPTH

24.5 mm

CUSHION

8.5 mm

SHOE TYPE

Removable Insole

SUGGESTED FOOTWEAR

Hiking Boot

HEEL CUP CORRECTION

Moderate

ARCH HEIGHT

22 mm

HEEL CUP DEPTH

29.5 mm

CUSHION

9.5 mm

SHOE TYPE

Removable Insole

SUGGESTED FOOTWEAR

Roomy Sneaker

HEEL CUP CORRECTION

Maximum

ARCH HEIGHT

24 mm

HEEL CUP DEPTH

29.5 mm

CUSHION

10.5 mm

SHOE TYPE

Removable Insole

SUGGESTED FOOTWEAR

Work Boot

HEEL CUP CORRECTION

Maximum

ARCH HEIGHT

24 mm

average rating 4.6 out of 5
Based on 172 reviews
  • 5 Stars
    140 Reviews
  • 4 Stars
    14 Reviews
  • 3 Stars
    7 Reviews
  • 2 Stars
    4 Reviews
  • 1 Star
    7 Reviews
90% of reviewers would recommend this product to a friend
Customer Service
Rated 4 out of 5
Price Satisfaction
Rated 4 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is Just Right and 2 is Runs Large
Customer photos and videos
172 Reviews
Reviewed by Ginger S. B.
Verified Buyer
I recommend this product
Reason for Purchase
  • Ankle Pain
  • General Foot Pain
Activities
  • Everyday
  • Running
Rated 5 out of 5
Review posted

Super sturdy & supportive

I don't care if you've tried every other orthotic available - if you have foot, ankle, knee and even hip or back pain, you owe it to yourself to at least give Protalus a fair trial. I've used everything from off-brand chain store inserts to expensive so-called 'specialty' orthotics to prescription inserts and custom made ones. Protalus beats all of them. I bought a pair way back when they were first introduced, and I loved them. I'd always meant to get on a subscription plan, but somehow never did. Fast forward to December 2025 and I decided to treat myself. The form and materials have changed somewhat, but the fit and support and durability Protalus has become known for is still obvious - if anything, it has improved. I highly recommend either or both the M-100 and the T-100 (depending on what shoes you're putting them in). Well worth the investment!

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Customer Service
Rated 5 out of 5
Price Satisfaction
Rated 5 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is Just Right and 2 is Runs Large
Was this helpful?
Reviewed by Debra H.
Verified Buyer
I recommend this product
Reason for Purchase
  • Plantar Fasciitis
  • Ankle Pain
  • General Foot Pain
Activities
  • Everyday
Rated 5 out of 5
Review posted

Review of -100

M-100's are awesome!

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Customer Service
Rated 4 out of 5
Price Satisfaction
Rated 3 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is Just Right and 2 is Runs Large
Was this helpful?
Reviewed by Mark B.
Verified Buyer
I recommend this product
Reason for Purchase
  • Back Pain
  • Hip Pain
  • General Foot Pain
  • Plantar Fasciitis
Activities
  • Everyday
Rated 5 out of 5
Review posted

M-100

My feet feel more level, no more aches and pain.

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Customer Service
Rated 5 out of 5
Price Satisfaction
Rated 5 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is Just Right and 2 is Runs Large
Was this helpful?
Reviewed by David L.
Verified Buyer
I recommend this product
Reason for Purchase
  • General Foot Pain
  • Neuropathy
  • Plantar Fasciitis
Activities
  • Everyday
Rated 5 out of 5
Review posted

MY M-100 INSOLES

Best ever shoe inserts. Planter Facittus is noticably better as soon as I placed them in my shoes and started walking. I noticed feeling like my body allignment seemed to be better. I highly reccomend these to any one that has issues with their feet. My neuropathy also has improved.

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Customer Service
Rated 5 out of 5
Price Satisfaction
Rated 5 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is Just Right and 2 is Runs Large
Was this helpful?
Reviewed by Kathleen C.
Verified Buyer
I recommend this product
Reason for Purchase
  • Knee Pain
  • Hip Pain
  • Back Pain
  • Ankle Pain
Activities
  • Everyday
Rated 4 out of 5
Review posted

ordered for my husband

I ordered this for my husband he had an ankle sprain followed by knee pain. seems to be helping.

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Customer Service
Rated 5 out of 5
Price Satisfaction
Rated 4 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is Just Right and 2 is Runs Large
Was this helpful?