








🦶 Step into unstoppable comfort and stride with confidence!
Spenco PolySorb Heavy Duty Insoles combine feather-light POLYSORB polyurethane foam with a patented SpenCore shock-absorbing layer and a deep heel cup to deliver superior heel-to-toe cushioning, stability, and all-day comfort. Featuring a Silpure-treated, low-friction 4-way stretch fabric top layer, these insoles prevent blisters and control odors while promoting a natural, efficient stride with a big toe cut-out and first ray drop zone. Designed to fit most shoes, they are ideal for professionals and active individuals seeking durable, high-performance foot support.










| ASIN | B000G1IL7M |
| Best Sellers Rank | #15,653 in Health & Household ( See Top 100 in Health & Household ) #85 in Shoe Insoles #1,452 in Sales & Deals |
| Customer Reviews | 4.4 4.4 out of 5 stars (6,822) |
| Date First Available | August 26, 2004 |
| Department | Unisex |
| Is Discontinued By Manufacturer | No |
| Item model number | 37-816-04 |
| Manufacturer | Spenco Medical |
| Product Dimensions | 11.75 x 4.19 x 0.81 inches; 4 ounces |
J**E
Repeat user of these
These are the best insole i've used. I'm a big dude, about 300 lbs. They make my boots comfortable. The insoles lasted for about 6-8 months in my daily wear work shoes before i could tell they were not as supportive any more (my foot, ankle, knee, and back pain started to come back). The pains cleared up in a couple days. Easy to trim. I had a prior insole to copy and they fit perfect. The sizing seems spot on, but i'm at the smaller end of this insole so i have to trim a fair bit. Size 12-13.5 I have used Spenco's gel insoles before which wore out faster and were less comfortable.
A**E
Great insert for planter fascititis
Great insert to use if you struggle with planter fascititis. They have great support and can be interchanged between shoes. Great price to ensure comfort while wearing shoes.
M**S
Excellent quality
This is a wonderful product that was first known to me by my Orthopedist 14 years ago and I am still wearing them. Great quality, extra cushioning in the heels, easy to cut and adjust to size and easy to wear in most shoes. Spenco is Microcellular Rubber which is incredibly durable. These last me a long time, but I buy more so I don't have to constantly change them from shoe to shoe. I would highly recommend this product to anyone with foot pain.
C**A
Arch Support
"I've been using the Spenco Polysorb Heavy Duty insoles for a while now, and they are incredibly comfortable. They provide excellent arch support and cushioning, which has significantly reduced foot fatigue, even during long days. My feet feel more supported, and I notice less discomfort after being on my feet for extended periods. Overall, I highly recommend them for anyone needing reliable foot support."
S**A
AWESOME! I can wear NORMAL SHOES AGAIN!
I have never found an insert that actually worked well enough to say my feet 'didn't hurt'- NOW I HAVE! They do take up a decent amount of space in the shoe, so ones that aren't very deep will likely not be able to accommodate them and your feet. I actually measured my shoes: I have 'thick' feet and my shoes that were only 2.5" deep (or less) will not work, 3" or more were perfect (measured without any insole). These take up about 1/2" of insole space, I could put my shoe's original insole on top of them- but they were far more comfortable without. I was truly amazed at the width difference between the two! I was certain I needed to trim the Polysorb insoles width-wise: NO WAY. These totally provide support to the sides of your feet that most 'retail' shoes do not. (Thus the discomfort when I added the original insole for 'extra' padding- my foot was wobbling in that extra space) I have always had to wear super expensive orthopedic shoes if I was going to be on my feet for much more than a run to the grocery store or so, at least if I wanted to be able to walk the next day anyway. Much more than an hour on my feet or two miles walking and I would be in agony. I do not have fallen or high arches, and I strongly recommend anyone having foot issues either go to a Dr, or at least do the 'wet foot' test to determine your type of arch. I thought I did have arch issues since it was the arch of my foot that was KILLING me- but 'arch supports' were useless (and sometimes very painful). I have tried nearly all of the 'walking shoes' on the mainstream market (Sketchers, Nike, Reebok, etc.) and each lead to horrific pain so they sat in my closet. I promptly put these inserts in within 20 minutes of their arrival- NO PAIN whatsoever. I have not put them to the ultimate test: I work at a school so I spend 6 hours a day on hard surfaces and I walk 3-4 miles/day, but I have done enough walking to say that these make a HUGE difference: I have worn orthopedics ONCE since they arrived (and that was because I really wanted to wear sandles that day).
D**Z
Too expensive now, thanks to tariffs
These work really well, and I've been buying them for years. Today, thanks to tariffs, they are 30% more expensive than when I bought them last year. Will now shop around for something more affordable.
M**E
comfort
bought these insoles as my podiatrist recommended. I am so satisfied with these and cannot believe how comfortable they are. I have tried many others from stores I bought my shoes from and these put all those to shame. Highly recommend you try them!! I have plantar fasciitis and the heal support is awesome, they are easy to cut down to size and come really close to the size they say they are. The pain relief was pretty much instant.
T**L
Nice shoe inserts
I like these inserts so much, I bought a pair for my wife.
E**D
very comfortable.
C**S
Las plantillas cumplen su función muy bien, ideales para practicar algún deporte.
山**坊
値段が高いですが、履き心地は最高です。耐久性に、ついては穴が空くまで1年程度でした。
U**L
Work boots
A**R
Wasn’t comfortable wearing them at all. Made the pain worse than before. I don’t recommend them
Trustpilot
1 week ago
3 weeks ago