+4
Spenco
RX Comfort Insoles
Unisex
Our Price
$9.95
Shoe Size Chart
Women's Shoe Size Conversion
| US & Canada | 10 | 10.5 | 11 | 11.5 | 12 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 |
| AU | 7 | 7.5 | 8 | 8.5 | 2 | 2.5 | 3 | 3.5 | 4 | |||
| UK | 8 | 8.5 | 9 | 9.5 | 10 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 |
| Europe | 40-41 | 41 | 41-42 | 42 | 42-43 | 35 | 35 | 35-36 | 36 | 36-37 | 37 | 37-38 |
| Inches | 10.2 in | 10.3 in | 10.5 in | 10.7 in | 10.9 in | 8.5 in | 8.3 in | 8.5 in | 8.8 in | 8.9 in | 9.1 in | 9.3 in |
| Centimeters | 25.9 cm | 26.2 cm | 26.7 cm | 27.1 cm | 27.6 cm | 20.8 cm | 21.3 cm | 21.6 cm | 22.2 cm | 22.5 cm | 23 cm | 23.5 cm |
Men's Shoe Size Conversion
| US & Canada | 10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 | 15 | 16 | 6 | 6.5 |
| AU | 9 | 9.5 | 10 | 10.5 | 11 | 12 | 13 | 14 | 15 | 5 | 5.5 |
| UK | 9.5 | 10 | 10.5 | 11 | 11.5 | 12.5 | 13.5 | 14.5 | 15.5 | 5.5 | 6 |
| Europe | 43 | 43-44 | 44 | 45-45 | 45 | 46 | 47 | 48 | 49 | 39 | 39 |
| Inches | 10.6 in | 10.8 in | 10.9 in | 11.1 in | 11.3 in | 11.6 in | 11.9 in | 12.2 in | 12.5 in | 9.3 in | 9.5 in |
| Centimeters | 27 cm | 27.3 cm | 27.9 cm | 28.3 cm | 28.6 cm | 29.4 cm | 30.2 cm | 31 cm | 31.8 cm | 23.5 cm | 24.1 cm |
Big Kids' Shoe Size Conversion (7–12 Years)
| US & Canada | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 |
| AU | |||||||
| UK | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 |
| Europe | 35 | 36 | 36 | 37 | 37 | 38 | 38 |
| Inches | 8.6 in | 8.8 in | 9 in | 9.1 in | 9.3 in | 9.5 in | 9.6 in |
| Centimeters | 21.9 cm | 22.2 cm | 22.9 cm | 23.2 cm | 23.5 cm | 24.1 cm | 24.4 cm |
Little Kids' Shoe Size Conversion (4–7 Years)
| US & Canada | 1 | 1.5 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 13.5 | 2 | 2.5 | 3 |
| AU | ||||||||||||
| UK | 13 | 14 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 1 | 1.5 | 2 |
| Europe | 32 | 33 | 27 | 28 | 29 | 30 | 30 | 31 | 31 | 33 | 34 | 34 |
| Inches | 7.8 in | 8 in | 6.6 in | 6.8 in | 7 in | 7.1 in | 7.3 in | 7.5 in | 7.6 in | 8.1 in | 8.3 in | 8.5 in |
| Centimeters | 19.7 cm | 20.3 cm | 16.8 cm | 17.1 cm | 17.8 cm | 18.1 cm | 18.4 cm | 19.1 cm | 19.4 cm | 20.6 cm | 21 cm | 21.6 cm |
Toddlers' Shoe Size Conversion (9 Months–4 Years)
| US & Canada | 10 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 |
| AU | ||||||||
| UK | 27 | 19 | 19 | 20 | 20 | 21 | 22 | 22 |
| Europe | 9 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 |
| Inches | 6.5 in | 4.3 in | 4.5 in | 4.6 in | 4.8 in | 5 in | 5.1 in | 5.3 in |
| Centimeters | 16.5 cm | 10.8 cm | 11.4 cm | 11.7 cm | 12.1 cm | 12.7 cm | 12.7 cm | 13.3 cm |
About this product
Built for running, training, and everyday movement, these cushioning insoles deliver reliable comfort wherever activity takes you. Shock absorption and energy return work together to support smooth, efficient strides. Designed for versatility, they fit seamlessly into daily workouts and active routines.
Comfort & Performance
- Dual-layer shock absorption and energy return
- Lasting cushioning for all-day comfort
- Helps reduce foot fatigue and strain
- Supports injury prevention during activity
Design & Materials
- Performance-focused insole construction
- Supportive structure for athletic movement
- Designed to extend shoe lifespan
- Suitable for running, walking, and sports
Spenco Size Chart
General Shoe Conversion Chart - Women's
| US & Canada | 4 | 4.5 |
5 | 5 | 6 | 6.5 | 7 | 10 | 10.5 | 11 | 11.5 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AU | 2 | 2.5 | 3 | 3.5 | 4 | 7 | 7.5 | 8 | 8.5 | |||
| UK | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 8 | 8.5 | 9 | 9.5 | 10 |
| Europe | 35 | 35 | 35-36 | 36 | 36-37 | 37 | 37-38 | 40-41 | 41 | 41-42 | 42 | 42-43 |
| Inches | 8.5 in | 8.3 in | 8.5 in | 8.8 in | 8.9 in | 9.1 in | 9.3 in | 10.2 in | 10.3 in | 10.5 in | 10.7 in | 10.9 in |
| Centimeters | 20.8 cm | 21.3 cm | 21.6 cm | 22.2 cm | 22.5 cm | 23 cm | 23.5 cm | 25.9 cm | 26.2 cm | 26.7 cm | 27.1 cm | 27.6 cm |
General Shoe Conversion Chart - Men's
| US & Canada | 6 | 6.5 |
10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 | 15 | 16 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AU | 5 | 5.5 | 9 | 9.5 | 10 | 10.5 | 11 | 12 | 13 | 14 | 15 |
| UK | 5.5 | 6 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12.5 | 13.5 | 14.5 | 15.5 |
| Europe | 39 | 39 | 43 | 43-44 | 44 | 45-45 | 45 | 46 | 47 | 48 | 49 |
| Inches | 9.3 in | 9.5 in | 10.6 in | 10.8 in | 10.9 in | 11.1 in | 11.3 in | 11.6 in | 11.9 in | 12.2 in | 12.5 in |
| Centimeters | 23.5 cm | 24.1 cm | 27 cm | 27.3 cm | 27.9 cm | 28.3 cm | 28.6 cm | 29.4 cm | 30.2 cm | 31 cm | 31.8 cm |
General Shoe Conversion Chart - Big Kids' (7–12 Years)
| US & Canada | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 |
| UK | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 |
| Europe | 35 | 36 | 36 | 37 | 37 | 38 | 38 |
| Inches | 8.6 in | 8.8 in | 9 in | 9.1 in | 9.3 in | 9.5 in | 9.6 in |
| Centimeters | 21.9 cm | 22.2 cm | 22.9 cm | 23.2 cm | 23.5 cm | 24.1 cm | 24.4 cm |
General Shoe Conversion Chart - Little Kids' (4–7 Years)
| US & Canada | 1 | 1.5 | 2 | 2.5 | 3 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 13.5 |
| UK | 13 | 14 | 1 | 1.5 | 2 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 |
| Europe | 32 | 33 | 33 | 34 | 34 | 27 | 28 | 29 | 30 | 30 | 31 | 31 |
| Inches | 7.8 in | 8 in | 8.1 in | 8.3 in | 8.5 in | 6.6 in | 6.8 in | 7 in | 7.1 in | 7.3 in | 7.5 in | 7.6 in |
| Centimeters | 19.7 cm | 20.3 cm | 20.6 cm | 21 cm | 21.6 cm | 16.8 cm | 17.1 cm | 17.8 cm | 18.1 cm | 18.4 cm | 19.1 cm | 19.4 cm |
General Shoe Conversion Chart - Toddlers' (9 Months–4 Years)
| US & Canada | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 10 |
| UK | 19 | 19 | 20 | 20 | 21 | 22 | 22 | 27 |
| Europe | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 9 |
| Inches | 4.3 in | 4.5 in | 4.6 in | 4.8 in | 5 in | 5.1 in | 5.3 in | 6.5 in |
| Centimeters | 10.8 cm | 11.4 cm | 11.7 cm | 12.1 cm | 12.7 cm | 12.7 cm | 13.3 cm | 16.5 cm |
Shipping & Returns
No-sweat, free shipping & returns!
United States Orders
- Free shipping 3-5 days
- Free returns/exchanges
- Expedited 2-day shipping also available
International Orders
- Free shipping
- Hassle-free returns/exchanges
- Restocking fee applied
*Shipping within Continental US: 2-5 days. International shipping: 7-11 days. See shipping policy here.
**Shoes must be unworn. See return policy here.
***Price match guarantee does not apply to Clearance or Final Sale items. See details here.
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