Spenco

Spenco PolySorb Heavy Duty Insoles - Performance Foam Shoe Inserts w 4-Way Stretch Fabric SpenCore Layer for Shock

61+ bought in the past month

$22.84$28.55

About this item

  • Nylon
  • COMPLETE FOOT SUPPORT: Constructed of feather-light POLYSORB Polyurethane Foam, these heavy-duty performance insoles provide unmatched heel-to-toe cushioning and support.
  • FEELS GREAT UNDERFOOT: Patented SpenCore material layer provides advanced shock and impact absorption for superior cushioning to keep joints and muscles comfortable and working at their best.
  • ALL-DAY HEEL COMFORT: Extra thick heel pad offers additional cushioning in the heel for extra comfort for standing on feet all-day.
  • OPTIMAL HEAL SUPPORT: Deep heel cup controls and supports the initial foot-strike while the Forefoot Crash Pad reduces pressure for all-day stability and comfort throughout any activity.
  • PREVENTS BLISTERS, CONTROLS ODORS: Low-friction Silpure-treated top cloth helps control odors, keeping your feet fresh and blister-free, while the adaptable 4-way stretch material conforms to your foot's contours, enhancing cushioning and comfort.
  • OPTIMIZED STRIDE SUPPORT: Enhance your stride with a big toe cut-out for efficient toe-off, a First Ray Drop Zone promoting a healthier stride, and full-length coverage ensuring customized heel-to-toe comfort and support in every step.
$22.84
Was $28.55Save $5.71

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Product details

BrandSpenco
ColorGreen
Product BenefitsArch support
Use forFoot, Heel
MaterialNeoprene, Nylon

Technical specifications

is_discontinued_by_manufacturerNo
product_dimensions11.75 x 4.19 x 0.81 inches; 4 ounces
item_model_number37-816-04
departmentUnisex
date_first_availableAugust 26, 2004
manufacturerSpenco Medical
best_sellers_rank#12,241 in Health & Household ( See Top 100 in Health & Household ) #66 in Shoe Insoles #1,255 in Sales & Deals

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Customer reviews

4.46,791 ratings

Customers say

Customers find these insoles comfortable and effective, with good arch support and pain relief, particularly for those with plantar fasciitis.

★★★★★

Repeat user of these

JoeSeptember 30, 2025

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. Read more

★★★★★

Great insert for planter fascititis

A EDecember 30, 2025

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. Read more

★★★★★

Nice shoe inserts

Tim AppelDecember 25, 2025

I like these inserts so much, I bought a pair for my wife. Read more

★★★★☆

These make my shoes and walking more comfortable!

Cactus99August 31, 2023

Aftermarket insoles have been a part of my life for awhile now! They are a small item that can help make me feel better, IF, they are good enough. To start off with, I have always had flat feet, am 6 feet, 3 inches and weigh about 260 lbs. So my feet and joints take a beating. The lighter the shoe and the more cushioning and support can make a serious difference throughout the day, at the end of the day and evening and even in the morning when I stand up and take my first few steps. I have tried a lot of insoles. In the past I have gone with less expensive ones, only to be disappointed with the lack of support, cushioning, stability and durability. :( So a few months back, I saw these Spenco Heavy Duty insoles. While their appearance won't overwhelm you. The materials they are made up of are pretty robust, don't compress to nothing and really provide the extra cushioning and support I really need. They are not the cheapest, nor the most expensive. They seem to have a mid position pricepoint. So considering how solid they are and longer lasting, I consider them a good value. :) I feel comfortable recommending these to others. If they can help me feel better with my particular body size, weight and feet, I think that you may benefit from these as well :) They may even allow you to walk more comfortably and thus you may add more steps to your day - which is something that can benefit a lot of us! Good luck! Read more

★★★★★

The serts

Joey lemucchiJanuary 11, 2026

Super comfortable fit my boots just great, long lasting comfort Read more

★★★☆☆

Too expensive now, thanks to tariffs

DogstarzApril 21, 2025

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. Read more

★★★★★

Jaime

Jaime C.January 9, 2026

This product is wonderful it helps with my feet and my back and my support I do highly recommend this products for people that have the problem and need support. Read more

★★★★★

Wow!

MorganJanuary 12, 2026

I've purchased dozens of soles/insert the past 2 decades. Candidly, these are, by far, the most comfortable. It's too early to determine if they'll last, but 2 hours in; nothing short of amazing. Read more

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