Shoes Insole – Your Comprehensive UK Buying Guide 2025

Finding the right pair of shoe insoles can transform how your footwear feels, whether you need extra cushioning for long days on your feet or a simple fix for shoes that are slightly too big. The UK market offers everything from budget-friendly options at supermarkets to specialist orthotics. This guide compares insoles from major retailers like Tesco, Screwfix, and Boots, explains how to choose between memory foam and gel, and looks at what “NHS approved” really means for over-the-counter products.

For many, the journey starts with a simple problem: shoes that don’t fit quite right or lack support. A well-chosen insole can address both. However, the sheer variety of materials and price points makes it difficult to know where to start. This article breaks down the options based on your specific needs, from filling extra space in a boot to finding medical-grade support for conditions like plantar fasciitis.

We have analysed product ranges available from high-street retailers, specialist online stores, and budget chains to help you make an informed decision. The key is understanding that a single “best” insole does not exist; the right choice depends entirely on your foot shape, shoe type, and intended activity.

What are the best shoe insoles for loose shoes and boots?

The two most common reasons people search for insoles are to fix a fit issue with loose shoes or to improve comfort and support in boots. Here is a quick overview of the main categories available on the market.

• Insoles are a cost‑effective solution for shoes that are slightly too big – they add volume and improve grip.
• Boots often benefit from thicker, shock‑absorbing insoles to reduce foot fatigue during long wear.
• Budget retailers (Tesco, Screwfix, Home Bargains) offer basic foam/gel insoles under £5, while specialist stores provide wider sizes and medical‑grade options.
• NHS‑approved insoles exist (e.g., FootActive), but most budget options are not clinically tested; users should verify claims.
• A single ‘best’ insole does not exist – the right choice depends on shoe type, foot shape, and intended activity.

How do insoles fix loose shoes?

If your shoes are half a size too large, an insole can fill the extra volume, lifting your foot and providing a snugger fit. Thicker insoles, particularly those made from foam or gel, work best for this purpose. This is a common fix for dress shoes or trainers that are slightly oversized. However, insoles will not fix a shoe that is more than one full size too large.

What type of insole works best for boots?

Boots, especially work boots or hiking boots, benefit from insoles that offer both cushioning and support. Memory foam provides comfort, while a firmer arch support helps prevent foot fatigue during long hours of standing. Anti-fatigue gel insoles are a popular choice for tradespeople, offering shock absorption. Screwfix, for example, stocks a selection of these work‑focused insoles.

Where can you buy shoe insoles? (Tesco, Screwfix, Home Bargains vs specialist retailers)

The UK market is split between budget-friendly options at supermarkets and hardware stores, and more specialised products at pharmacy chains and online retailers. Your choice depends on your budget and specific needs. For a quick fix or basic cushioning, a budget retailer may suffice. For a medical condition or a need for durable support, a specialist is likely the better option.

Are Tesco insoles good value?

Tesco sells basic foam and gel insoles at very low prices, typically between £3 and £5. These are suitable for light, everyday use and can add a layer of cushioning to casual shoes or trainers. They are not designed for medical conditions like plantar fasciitis and may lack the durability of specialist brands. They represent good value for a temporary solution.

What does Screwfix offer for insoles?

Screwfix stocks a limited range of insoles tailored to tradespeople and those who spend long hours on their feet. You can find anti-fatigue and gel insoles designed for work boots. While the selection is more focused on function than comfort, they are a practical choice for workers needing immediate, robust support. These are not medical-grade but offer good shock absorption.

Home Bargains insoles – quality and price

Home Bargains offers some of the cheapest insoles on the market, often under £3. These are adequate for temporary use or for providing a very basic layer in shoes that are slightly too big. However, they typically offer minimal arch support and may compress quickly. For long-term comfort or any form of foot pain, these should be considered a last resort.

How to choose the best shoe insole for your needs

Choosing the right insole comes down to understanding the material and its intended purpose. There is a significant difference between a soft gel pad and a rigid arch support. The wrong choice can cause discomfort or fail to solve your problem. We break down the main categories below.

Memory foam, gel, or arch support – which is best?

Memory foam insoles are soft and mould to the shape of your foot, offering good initial comfort. However, they can lose their shape and support over time, typically within a few months. Gel insoles are excellent for shock absorption and are often used in sports shoes or by people who stand for long periods. Arch support insoles are firmer and designed to correct foot alignment, making them ideal for flat feet or plantar fasciitis.

The best choice depends on your activity. For casual walking, a gel insole provides a good balance of cushioning. For a work boot, a combination of memory foam for comfort and arch support for stability is often recommended.

NHS-approved insoles: what you need to know

The term “NHS approved” is used by some manufacturers, such as FootActive, but it is important to understand what this means. These products are not prescribed by the NHS but are considered suitable for general foot care. There is no single, official NHS endorsement list for commercial insoles. If you have a chronic foot condition, you should consult a GP or podiatrist before purchasing any insole that claims to treat a medical issue. The NHS provides a general guide to foot pain that can help you identify your symptoms.

How to choose between memory foam and gel insoles

This is one of the most common questions for anyone buying their first pair of insoles. The table below clarifies when each material is the better choice.

Timeline: Evolution of Shoe Insole Materials

Understanding the history of insole materials helps explain the options available today and their specific benefits.

1. 1970s: Introduction of gel insoles. Spencer Wright and others pioneered silicone and gel materials for shock absorption, primarily for sports shoes.
2. 1990s: Memory foam becomes widely available. Initially used in pillows and mattresses, it quickly found its way into footwear for its pressure-relieving properties.
3. 2000s: Rise of specialist arch support insoles. Brands like Superfeet and FootActive popularise pre-fabricated orthotics for over-the-counter sale.
4. 2010s – Present: Hybrid insoles become common, combining memory foam with a rigid arch support base. Budget retailers begin stocking basic foam models.

What is certain and what remains unclear about shoe insoles?

While there is strong evidence for the general benefits of insoles, some claims require a critical eye. The following table separates what is widely accepted from what remains uncertain.

The context of UK shoe insole buying

The high volume of search queries for “insoles for shoes too big” reveals a specific consumer behaviour: many UK buyers are trying to salvage ill-fitting shoes rather than returning them. This makes the price point a critical factor. Budget retailers like Tesco and Home Bargains directly cater to this need, offering a low-cost fix for a common problem.

In contrast, the market for medical-grade insoles is driven by chronic pain and long-term foot health, which is why brands like FootActive and ShoeInsoles.co.uk focus on materials and biomechanics. The difference between a £3 insole and a £30 insole is not just in brand marketing but in the quality of the material and the level of engineering for support.

What do the experts and retailers say about shoe insoles?

Retailers and manufacturers provide clear descriptions of what their products are designed to do. These quotes help contextualise the intended use of different types of insoles.

“Our shoe insoles can turn a loose boot into a snug fit, while soft shoe inserts combat any rubbing issues for protection against blisters.”

— Boots UK

“Shoe insoles provide extra cushioning underneath your feet, absorb shocks that could otherwise result in aches and pains, counteract unsupportive footwear.”

— FootActive

“Helps you strengthen muscles to avoid discomfort. Cushioning and supportive insoles to stop plantar fasciitis.”

— ShoeInsoles.co.uk

Summary: Finding the right shoe insole for your needs

The best shoe insole is the one that matches your specific problem. For a cheap fix for loose shoes, a basic foam insole from a budget retailer will work. For standing all day or working in boots, a gel or anti-fatigue insole is a better investment. For a medical condition, you should look at specialist options and consult with a healthcare professional. Always check whether the insole can be trimmed to fit your shoe and how often it should be replaced. For more information on specific types, see our guide on Affordable Insoles for Everyday Comfort.

Frequently Asked Questions