Whether you're walking, working or spending long hours on your feet, comfortable support can make a noticeable difference to your everyday wellbeing. The Trio Orthotic Insole has been carefully selected by Mark Smith Orthotics to provide dependable heel and arch support in a versatile orthotic suitable for a wide range of footwear.
Available in Full Length and 3/4 Length designs, with a choice of Medium or Firm densities, the Trio range allows you to choose the combination that best suits your footwear, comfort preferences and everyday activities.
The Full Length version provides support beneath the entire foot from heel to toe, while the 3/4 Length version supports the heel and arch while leaving the forefoot free, making it ideal for footwear where additional toe space is beneficial.
Available in adult sizes from UK 3 to UK 12, the Trio Orthotic Insole is suitable for trainers, walking shoes, work footwear and many everyday shoes.
Looking for children's orthotics? We also offer a dedicated range of Children's Insoles, designed specifically for growing feet. Please visit our Children's Insoles category to view the complete range.
Whether you're looking for your first orthotic or a dependable everyday insole, the Trio Orthotic Insole provides reliable support backed by decades of orthotic expertise.
Why Choose the Trio Orthotic Insole?
The Trio Orthotic Insole may be suitable if you:
- Need dependable heel and arch support.
- Spend long periods standing or walking.
- Want a choice of Full Length or 3/4 Length designs.
- Prefer a choice of Medium or Firm support.
- Wear trainers, walking shoes, work footwear or everyday shoes.
Product Variations
Full Length
Provides support beneath the entire foot from heel to toe, making it suitable for trainers, walking shoes, work footwear and many everyday shoes with removable insoles.
3/4 Length
Supports the heel and arch while leaving the forefoot free, making it ideal for footwear where additional forefoot space is beneficial.
Density Options
Choose the support level that best suits your comfort preferences.
-
Medium
– A balanced combination of cushioning and support for everyday comfort. -
Firm
– Increased structural support for people who prefer a firmer orthotic.
Suitable For
The Trio Orthotic Insole may be suitable for people who:
- Spend long periods standing or walking.
- Need dependable everyday heel and arch support.
- Want a choice of support levels.
- Wear trainers, walking shoes or work footwear.
- Prefer a versatile everyday orthotic.
May Be Suitable For People Experiencing
The Trio Orthotic Insole may be suitable for people experiencing:
- General foot discomfort*
- Heel discomfort*
- Mild arch discomfort*
- Foot fatigue*
- Everyday walking discomfort*
- Long periods of standing*
Compatible Footwear
Suitable for use in:
- Trainers
- Walking shoes
- Walking boots
- Work footwear
- Casual shoes
- Everyday footwear with removable insoles
Choose the Full Length version for maximum underfoot support, or the 3/4 Length version where additional space in the forefoot is preferred.
Why Buy from Mark Smith Orthotics?
Every off-the-shelf orthotic we stock has been carefully selected by Mark Smith, drawing on decades of experience manufacturing bespoke orthoses for NHS services, private clinics, healthcare professionals and members of the public.
The Trio Orthotic Insole has been selected for customers looking for a dependable, versatile everyday orthotic that offers a choice of lengths and support levels to suit a wide range of footwear and activities.
Need Help Choosing?
Not sure which Trio Orthotic Insole is right for you?
Book a FREE 15-minute discussion with Mark to learn more about our off-the-shelf orthotic range. We'll explain the differences between the Trio Full Length, Trio 3/4 Length, Trio Easy Fit, Elite, Prostep, Gaitway, EquiFlex and our other orthotic products, helping you understand which option may best suit your footwear and everyday activities.
If you're looking for orthotics for a child, please visit our Children's Insoles category to view our dedicated children's range.
Please note that this service is intended to help you understand our products. We cannot diagnose medical conditions, prescribe treatment or recommend a specific product for a medical condition.
What is the difference between the Full Length and 3/4 Length versions?
The Full Length version supports the entire foot from heel to toe and is ideal for trainers, walking shoes and work footwear. The 3/4 Length version supports the heel and arch while leaving the forefoot free, making it suitable for footwear where additional toe space is beneficial.
What is the difference between the Medium and Firm versions?
The Medium version provides balanced everyday support, while the Firm version offers increased structural support for those who prefer a firmer orthotic.
How do I choose the correct size?
Choose the size that matches your usual UK shoe size using the sizing guide above. If you're unsure, we're always happy to help.
Do you offer Trio orthotics for children?
Our children's orthotic range is available separately within our Children's Insoles category, making it easier to choose products specifically designed for growing feet.
When should I consider bespoke orthoses?
If you have complex foot mechanics, significant differences between your feet or require a fully personalised orthotic solution, our bespoke orthoses may provide a more appropriate option.
- Available in Full Length and 3/4 Length designs
- Medium or Firm density
- Anatomically contoured orthotic
- Deep supportive heel cup
- Lightweight construction
- Available in adult sizes from UK 3 to UK 12
- Supplied as a pair
- Available in Full Length and 3/4 Length designs
- Choice of Medium or Firm densities
- Anatomically contoured heel and arch support
- Deep supportive heel cup
- Lightweight, durable construction
- Suitable for walking, work and everyday activities
- Available in adult sizes from UK 3 to UK 12
- Fits a wide variety of footwear
- Supplied as a pair
The Trio Orthotic Insole is available in adult sizes from UK 3 to UK 12, with each size offered in both Full Length and 3/4 Length designs and Medium or Firm densities.
-
Orthotic Size:
X-Small —
Suitable UK Shoe Size:
UK 3–4 —
Approximate EU Shoe Size:
EU 36–37 -
Orthotic Size:
Small —
Suitable UK Shoe Size:
UK 5–6 —
Approximate EU Shoe Size:
EU 38–39 -
Orthotic Size:
Medium —
Suitable UK Shoe Size:
UK 7–8 —
Approximate EU Shoe Size:
EU 40–42 -
Orthotic Size:
Large —
Suitable UK Shoe Size:
UK 9–10 —
Approximate EU Shoe Size:
EU 43–44 -
Orthotic Size:
X-Large —
Suitable UK Shoe Size:
UK 11–12 —
Approximate EU Shoe Size:
EU 45–47
When ordering, simply choose:
- Full Length or 3/4 Length
- Medium or Firm density
- The size that matches your usual UK shoe size
If you're unsure which option is most suitable, book a FREE 15-minute discussion with Mark and we'll be happy to help.

