--- product_id: 1950374 title: "PolySorb Heavy Duty Insoles - Performance Foam Shoe Inserts w/ 4-Way Stretch Fabric & SpenCore Layer for Shock Absorption, Odor Control & All-Day Comfort & Stability - Fits Most Shoes" brand: "spenco" price: "€ 66.41" currency: EUR in_stock: true reviews_count: 13 category: "Spenco" url: https://www.desertcart.sk/products/1950374-polysorb-heavy-duty-insoles-performance-foam-shoe-inserts-w-4 store_origin: SK region: Slovakia --- # 4-way stretch fabric fit Full heel-to-toe cushioning Advanced shock absorption layer PolySorb Heavy Duty Insoles - Performance Foam Shoe Inserts w/ 4-Way Stretch Fabric & SpenCore Layer for Shock Absorption, Odor Control & All-Day Comfort & Stability - Fits Most Shoes **Brand:** spenco **Price:** € 66.41 **Availability:** ✅ In Stock ## Summary > 🦶 Step into unstoppable comfort and support—your feet’s new best friend! ## Quick Answers - **What is this?** PolySorb Heavy Duty Insoles - Performance Foam Shoe Inserts w/ 4-Way Stretch Fabric & SpenCore Layer for Shock Absorption, Odor Control & All-Day Comfort & Stability - Fits Most Shoes by spenco - **How much does it cost?** € 66.41 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/1950374-polysorb-heavy-duty-insoles-performance-foam-shoe-inserts-w-4) ## Best For - spenco enthusiasts ## Why This Product - Trusted spenco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Odor & Blister Defense:** Silpure-treated low-friction top cloth keeps feet fresh and blister-free, while 4-way stretch fabric molds perfectly to your foot’s unique shape. - • **Stride-Optimized Design:** Big toe cut-out and first ray drop zone promote a natural, efficient toe-off for a healthier, more confident stride. - • **Precision Heel Stability:** Deep heel cup controls foot strike for superior stability and reduces pressure with a forefoot crash pad—perfect for standing or moving all day. - • **Unmatched All-Day Comfort:** Feather-light POLYSORB foam cushions every step from heel to toe, keeping you energized through long workdays or active weekends. - • **Next-Level Impact Protection:** Patented SpenCore layer absorbs shocks to protect joints and muscles, reducing fatigue and enhancing performance. ## Overview Spenco PolySorb Heavy Duty Insoles combine lightweight POLYSORB polyurethane foam with a patented SpenCore shock-absorbing layer and 4-way stretch fabric to deliver superior heel-to-toe cushioning, stability, and odor control. Designed for all-day wear, these insoles feature a deep heel cup, forefoot crash pad, and specialized zones to optimize stride efficiency and prevent blisters, making them ideal for professionals and active individuals seeking lasting foot comfort and support. ## Description Say goodbye to foot fatigue, discomfort, and blisters, and step into a world of lasting comfort and stability with Spenco POLYSORB Heavy Duty Insoles—your go-to solution for all-day foot comfort and support.Engineered with lightweight POLYSORB Polyurethane Foam, these performance insoles offer the heel-to-toe cushioning and support preferred by consumers over shoe insoles with rigid arch support systems.The 5/32-inch SpenCoreMaterial layer and Heel-strike Pad absorbs shocks and impacts, keeping your lower body comfortable and primed for action, making these shoe and boot insoles perfect for work, running, hiking, walking, or standing all day.The precision heel cup controls and supports the initial foot-strike,providing essential stability during any activity.Crafted with a low-friction Silpure-treated top cloth and 4-way stretch fabric, these Spenco insoles conform to the contours of the foot to help reduce friction, prevent blisters, and keep your feet fresh and odor-free.The big toe cut-out and first ray drop zone promote efficient toe-off and a healthier stride, allowing your foot to function more naturally.Designed to fit the entire last of your shoe, these full-length insoles ensure end-to-end comfort and support, and are unconditionally guaranteed for one year. Treat your feet to the best insole technology on the market. Review: 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. Review: 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). ## Features - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000G1IL7M | | Arch Type | motion-control | | Best Sellers Rank | #19,410 in Health & Household ( See Top 100 in Health & Household ) #129 in Shoe Insoles #1,612 in Sales & Deals | | Brand | Spenco | | Brand Name | Spenco | | Color | Green | | Corrective Support | True | | Customer Reviews | 4.4 out of 5 stars 6,868 Reviews | | Global Trade Identification Number | 00038472790457 | | Insole Type | Comfort Insole | | Item Dimensions | 11.75 x 4.19 x 0.81 inches | | Item Form | Pad | | Item Weight | 4.8 ounces | | Manufacturer | Spenco Medical | | Material | Neoprene, Nylon | | Material Type | Neoprene, Nylon | | Model Name | Polysorb Heavy Duty Maximum All Day Comfort and Support Shoe Insole | | Number of Items | 1 | | Other Special Features of the Product | Cushioning | | Product Benefits | Arch support | | Recommended Uses For Product | Heel,Shoe | | Size | Women's 11-12.5 / Men's 10-11.5 | | Target Use Body Part | Foot, Heel | | UPC | 038472790457 | | Unit Count | 1 Count | | Use for | Foot, Heel | | Warranty Description | One-Year Unconditional Guarantee | ## Product Details - **Brand:** Spenco - **Color:** Green - **Material:** Neoprene, Nylon - **Product Benefits:** Arch support - **Use for:** Foot, Heel ## Images ![PolySorb Heavy Duty Insoles - Performance Foam Shoe Inserts w/ 4-Way Stretch Fabric & SpenCore Layer for Shock Absorption, Odor Control & All-Day Comfort & Stability - Fits Most Shoes - Image 1](https://m.media-amazon.com/images/I/714VXc-RQ0L.jpg) ## Available Options This product comes in different **Pattern, Size, Style** options. ## Questions & Answers **Q: What sizes are the Polysorb Heavy Duty Insoles available in?** A: The Polysorb Heavy Duty Insoles come in 6 sizes, which range from a women's 5 to a men's 15.5. **Q: How much does the Polysorb Heavy Duty Insole weigh?** A: The Polysorb Heavy Duty Insole weighs only 0.35 lbs. **Q: What shoe types are the Polysorb Heavy Duty Insole designed for?** A: Use the Polysorb Heavy Duty Insole with a large range of closed-toe shoes: running, walking, sport-specific, working, and boots. **Q: What conditions do the Polysorb Heavy Duty Insole fight against?** A: The Polysorb Heavy Duty Insole prevents: Plantar Fasciitis, Over Pronation, Flat Feet/Arch Support, Morton's Neuroma/Ball-of-Foot, Pain, Hammer Toe, Heel Spurs/Heel Pain **Q: What are the materials used in the Polysorb Heavy Duty Insole?** A: Fabric 15%, Pu 35%, Neoprene 35%, Sbr 15% ## Customer Reviews ### ⭐⭐⭐⭐⭐ Repeat user of these *by J***E on September 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. ### ⭐⭐⭐⭐⭐ AWESOME! I can wear NORMAL SHOES AGAIN! *by S***A on August 14, 2016* 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). ### ⭐⭐⭐⭐⭐ comfort *by M***E on January 21, 2026* 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. ## Frequently Bought Together - Spenco PolySorb Heavy Duty Insoles - Performance Foam Shoe Inserts w/ 4-Way Stretch Fabric & SpenCore Layer for Shock Absorption, Odor Control & All-Day Comfort & Stability - Fits Most Shoes - Spenco Polysorb Cross Trainer Athletic Cushioning Arch Support Shoe Insoles, Green, Women's 11-12.5/Men's 10-11.5 - Spenco Rx Comfort Thin Lightweight Cushioning Orthotic Shoe Insole, Women's 11-12.5/Men's 10-11.5 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/1950374-polysorb-heavy-duty-insoles-performance-foam-shoe-inserts-w-4](https://www.desertcart.sk/products/1950374-polysorb-heavy-duty-insoles-performance-foam-shoe-inserts-w-4) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-14*