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What is shoe sockliner?

Author

Emily Sparks

Published Jan 21, 2026

Sockliner

The sockliner (also called insole) is the first layer of soft foam which your foot rests on inside the running shoe. ASICS has developed sockliners made of foam which offer cushioning and make sure your foot fits comfortably inside the shoe.

What is shoe midsole?

The midsole is the cushioned material (material, density, and thickness may vary) that is directly between your foot and outsole. The midsole provides cushioning and rebound and helps protect the foot from feeling hard or sharp objects.

What is molded sockliner?

Sockliner. The Sockliner, Sock, Footbed or insole is the foam padded mesh that your foot stands on. May be removable or may be cemented in. High end shoes will be molded EVA of PU foam. Low end shoes will be die cut EVA.

What is EVA sockliner?

An EVA footbed is characterised by its special cushioning properties, which help to ensure that every step is gently absorbed. EVA is an abbreviation for ethylene vinyl acetate. This rubber-like plastic has a high heat and cold resistance on top of being particularly durable.

Where is the cushioning in a shoe?

Just above the outsole is the midsole. The midsole is a layer of foam that connects the upper to the outsole. The midsole provides the cushion of the shoe. Typically, shoes with more cushion will have a thicker midsole, while more minimal shoes will have a thinner midsole.

19 related questions found

What are cushioning shoes?

Cushioning in a shoe is its capacity to absorb the force of an impact. In the case of running, this need arises when your foot comes into contact with the ground, specifically the first 50 milliseconds of the approximately 250 milliseconds of the support phase of the stride.

Is cushioning good for running?

A new study published in Scientific Reports suggests that running in those comfortable, highly cushioned shoes often marketed to prevent injury, might actually increase leg stiffness and lead to greater impact loading when your foot hits the pavement.

What is OrthoLite sockliner?

OrthoLite is most often found as an insole or lining made from recycled rubbers and proprietary polyurethane material. It is eco-friendly, and made to be sustainable.

What does EVA in shoes stand for?

EVA is the acronym name of a material that stands for Ethylene-Vinyl Acetate. EVA is an elastomeric (naturally stretchy) polymer that produces materials which are "rubber-like" in softness and flexibility.

What are shoe liners made of?

Fabric is the most common lining material, particularly cotton and viscose. Cotton and viscose are both extremely breathable fabrics that absorb moisture, making shoes more comfortable and sterilized. Even if a pair of shoes is worn regularly, if it's lined with cotton or viscose it will likely retain its shape.

Is a sockliner the same as an insole?

Sockliner is an inner part of the footwear that covers the insole (footbed) of the footwear. You touch this part with your foot during wearing shoes.

Does OrthoLite have arch support?

Ortholite All Day Insoles, Athletic Triple Zone, Arch Support, Absorbs Shock, Comfortable Inserts, Won't Compress, Breathable Shoe Insole for Flat Feet, Running Foam Insert, Men's Size 13.5.

What is converse OrthoLite?

OrthoLite's open-celled composition resists compression, helping it to remain comfortable for longer. In fact, OrthoLite claim their insoles compress less than five per cent over time. This also means shoes fit more consistently throughout their lifetime.

What is the difference between insole and midsole?

As nouns the difference between midsole and insole

is that midsole is the layer of a shoe in between the outsole and insole, typically there for shock absorption while insole is the inside sole of a shoe or other footwear.

What does TPU stand for in shoes?

Thermoplastic Urethane (TPU) Boot Outsoles

It is an advanced form of polyurethane (PU) that is very study, abrasion resistant and flexible. Most boots come standard with TPU soles these days and its wise to not settle for anything less durable, such as PU.

What is the purpose of the midsole?

The midsole is designed to provide cushioning and shock absorption. The outsole is the part of the shoe that touches the ground and is commonly referred to as the sole. Running shoes have a thick midsole. In contrast, racing flats, which are designed to be lightweight, have a thin midsole.

Are Crocs made out of EVA?

Manufacture and patents

In June 2004, Crocs purchased Foam Creations and their manufacturing operations to secure exclusive rights to the proprietary foam resin called Croslite. Croslite is a closed-cell resin, described by third parties as an injection-moulded EVA foam.

Is EVA safe in footwear?

EVA is considered to be a safe alternative to PVC, as it doesn't require plasticizers like phthlates, and it's BPA free.

Which is better EVA or rubber?

The main reason for this is EVA is lighter in weight than rubber and has greater flexibility and better shock absorption capability. Rubber on the other hand, is more durable, hard wearing, resistant to heat and offers the best grip on slippery surfaces.

Are OrthoLite insoles any good?

They are pretty slim and have noticeable arch support, but not enough to distract. They're the kind of comfortable that you enjoy but aren't meant to notice, sort of like a good movie score or comic-book inks. Before these, I tried Nike Solarsoft insoles, and they were too thick. I'd buy Ortholites again.

What is eco OrthoLite?

OrthoLite® is an eco-conscious brand—using solar power, recycled wastewater, and plant-based bio-oil. © 2022 O2 Partners, LLC. OrthoLite is a trademark of O2 Partners, LLC.

Do running shoes lose cushioning?

Sadly, neither component lasts forever; both will eventually break down, even on unworn shoes. If the soles feel noticeably less cushioned than when you first bought them, it's time to get a fresh pair.

Can running shoes be too cushioned?

Despite popular belief, researchers from the Spaulding National Running Center determined that highly cushioned shoes are not linked to lower levels of impact than traditional running shoes. They found the opposite to be true.

What kind of cushioning is best for running?

Runners may prefer the comfort of thicker, softer foam underfoot when running long distances or multiday races. But super-soft cushioning isn't for everyone. Some don't like the squishiness feel. Moderate cushion: Shoes with moderate cushion strike a balance between pillow-soft comfort and thin or no cushion.