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Ultra Work / Sport™ Insole

Regular Price: $29.95

Special Price $21.50

Availability: In stock

Quick Overview

The Ultra Work/Sport™ Replacement Insole combines molded polyurethane foam for structural support with Sorbothane®. Strategically placed Sorbothane® inlays provide cushioning comfort and foot-strike protection.

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Regular Price: $29.95

Special Price $21.50



Sorbothane® Comfort & Support

The Ultra Work/Sport™ Replacement Insole combines molded polyurethane foam for structural support with Sorbothane®. Strategically placed Sorbothane® inlays provide cushioning comfort and foot-strike protection. Durable and comfortable, Ultra Work/Sport™ Replacement Insoles retain their support and shock-absorbing benefits month after month.

The leading performance replacement insole featuring a cupped heel and molded arch for stability along with Sorbothane inserts for outstanding foot-strike protection. They are so effective that they have been approved and recommended by the American Podiatric Medical Association. The Ultra Work-Sport insole works well in athletic shoes, work shoes and boots. Sorbothane is the only insole-material that absorbs up to 94.7 percent of impact shock; and unlike standard insoles, which can bottom out, compress and lose effectiveness; Sorbothane Ultra Work Sport Insoles retain their support and comfort, month after month. Lightweight and durable, they also breathe, which makes for a much cooler insole. Sorbothane rubber was developed to simulate the soft padding of the heel. This makes it the most comfortable and best cushioning insole rubber available. Unlike foam rubbers it resists becoming hard or flat over time and lasts much longer that other insoles. Rx Sorbo Insoles are proudly made in the USA at our factory in Kent, OH.

So why exactly are RxSorbo insoles MORE THAN JUST INSOLES? The main reason they are NOT made of simple and gimmicky foam or gel like most insoles. They are made of an advanced VISCO-ELASTIC material available, called Sorbothane. Sorbothane is the leader in vibration isolation. It is the same material trusted by NASA, NASCAR and countless other agencies and companies for their vibration isolation needs. Rx Sorbo Insoles are recommended by Dr. Mark Mendeszoon. Mendeszoon is a Board Certified podiatrist who treats all types of surgical and non-surgical conditions of the leg, foot and ankle. He has trained athletes from the high school level up to current Olympic medalists.

Average heel thickness is 9mm. Metatarsal thickness is 6.5mm. Average heel drop of the RxSorbo Work-Sport Insole is 2.5mm.

“Proven Impact-shock protection and comfort for my patients and me...that’s why I use RX Sorbo Insoles.”Dr. Mark Mendeszoon

Size Table

Size Single Insole Weight Total Length Ball of Foot Width Heel Width Ball of Foot Thickness Heel Thickness
Women's 4.5-5.5
Mens 3.5-4 (AA)
0.13 9.25 3.3 2.3 0.22 0.35
Women's 6-7
Mens 4.5-5 (A)
0.15 9.875 3.3 2.4 0.25 0.35
Women's 7.5-8.5
Mens 5-6 (B)
0.17 10.125 3.4 2.4 0.27 0.38
Women's 9-10
Mens 6.5-7.5 (C)
0.18 10.75 3.7 2.7 0.27 0.38
Women's 10.5-11.5
Mens 8-9 (D)
0.19 11.125 3.7 2.7 0.27 0.38
Women's 12
Mens 9.5-10.5 (E)
0.22 11.5 4 2.9 0.27 0.38
Women's 13
Mens 11-12 (F)
0.23 12 4 2.9 0.27 0.38
Women's 14
Mens 12.5-13.5 (G)
0.26 12.5 4.3 3.1 0.27 0.4
Women's 15
Mens 14-15 (H)
0.26 12.75 4.3 3.1 0.29 0.42

Customer Reviews

Running Again Review by Amazon Review
with these insoles i'm able to jog for the first time in years without aggravating my back. of course i use them in shoes. (Posted on 10/1/2015)
The Very Best Review by Amazon Review
Haven't found a better product in this category. In addition to impact reduction, soles provide great arch and stability support. Definitely a superior product. (Posted on 10/1/2015)
Aaahhhhhh Review by Amazon Review
I have been using these insoles for years and they do a great job of absorbing the pounding that my feet usually take at work. No boots that I have ever purchased came with soles comparable to these replacements. Do your feet a favor. (Posted on 10/1/2015)
Sorbothane Review by Amazon Review
Running shoes typically have a very, very cheap insole. I remove them (use them in my dress shoes) and replace them with sorbothane (have done this forever). I fine a pair of these insoles last for two sets of running shoes (900 miles). After that, they can be used in a walking shoe or tossed. I have found many of my shoes, which I no longer wore, was simply because the insole was worn out. If you don't feel good in a shoe, you don't wear it. (Posted on 10/1/2015)
World's Best Insole!! Review by Amazon Review
I have been using this particular brand for over a decade! I have also used the other popular brands, which are ALL not close to the comfort of Sorbothane. Sorbothane also happens to be the material that covers all professional goal poles and NBA backboard frames. This stuff is unbelievable. Not cheap, but you do get what you pay for. I put these in every pair of shoes i buy, from casual shoes to my $100 nike's. You can't believe how a good a nike air feels with this insole in it! It's like walking on a cloud, no kidding. (Posted on 10/1/2015)
Make a good shoe better Review by Amazon Review
Put these inside a pair of Asics running shoes. Original innersole was not very good. Shoe is great this new Rxsorbo makes it even better. Feels really good when on concrete all day. (Posted on 10/1/2015)
Too Thick Review by Amazon Review
I can't review if these work or not because they were too thick to fit in any of my shoes. I think there were parts of this that were beyond 1/4 inches thick. I had a pair of running shoes that needed to have a good pair of inserts but these were too much. Still, understand that I'm not commenting on their effectiveness only on fitting them into a pair of shoes that are already close fitting to your feet. If you think the shoes you have are too big, these might work for you. (Posted on 10/1/2015)
High quality product Review by Amazon Review
The insoles are made of high quality material. It focuses on cushioning the ball of the foot in high impact situations i.e. jogging or aerobic training.
Unfortunately, I need increased cushioning for plantar facsitis, which this product does not address. (Posted on 10/1/2015)
A true godsend to my feet! Review by Amazon Review
I have had a long history of tearing through timberland boot liners in less than a year for the past 10 years or so. This caused me to have to buy a new pair of Tim's once a year!!! Finally I decided to try these new insoles out and I couldn;t be happier! These are truly more comfortable and durable than the timberland factory insoles the boots come with. Not only have I done NO damage to these new insoles what so ever, my feet are exponentially more comfortable in daily walking. I also have noticed that walking up hills in my boots now takes far less energy than it did before thanks to these great sorbothane insoles! (Posted on 10/1/2015)
A nice addition to hiking boots Review by Amazon Review
I purchased these insoles to go with a pair of Wellco Jungle Boots. If you are familiar with a panama sole, you know that they protect the feet from rocks in the insole but the trade off is that they are very hard with no cushion. The Isolate It insole definitely supports and cushions the foot. My only complaint which keeps me from rating higher is that the sizing information is off. The insoles come up short of the length of the shoes by about 3/8" which makes for discomfort under your toes. This being said, if you buy up on size and possible trim - these would be a great choice. (Posted on 10/1/2015)

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