Five Ten Size Guide
Five Ten specialises in high-performance climbing and biking shoes, engineered with precision fit and technical accuracy. The brand is known for its aggressive downturned lasts in climbing footwear and responsive, durable construction across its range. Five Ten shoes tend to fit true to size, though climbing models often feature a snug, performance-oriented fit that demands accurate foot measurement. Whether you're selecting climbing shoes, mountain biking footwear, or casual outdoor shoes, proper sizing is essential for comfort and performance.
How to Measure
- Measure your feet in the evening when they are slightly swollen from daily activity—this ensures you select a size that accommodates natural foot expansion.
- Place a ruler or measuring tape flat on the ground. Stand with your heel against a wall or vertical surface, keeping your weight evenly distributed.
- Mark the floor at the tip of your longest toe (usually the big toe, though not always).
- Measure the distance from the wall to your mark in centimetres. Record this measurement for both feet, as one foot is often slightly larger.
- Use the larger of the two measurements to select your size, consulting the foot-length column in the appropriate size chart below.
- For climbing shoes specifically, consider that a snug fit is performance-critical; if you measure between two sizes, choose the smaller size rather than the larger.
- Have someone assist you with measuring for greater accuracy and consistency.
Men's Shoe Sizes
| UK | US | EU | Foot Length (cm) | Foot Length (inches) |
|---|---|---|---|---|
| 3.5 | 4 | 36 | 22.1 | 8.7 |
| 4 | 4.5 | 36–37 | 22.5 | 8.9 |
| 4.5 | 5 | 37 | 22.9 | 9.0 |
| 5 | 5.5 | 38 | 23.3 | 9.2 |
| 5.5 | 6 | 38–39 | 23.8 | 9.4 |
| 6 | 6.5 | 39 | 24.2 | 9.5 |
| 6.5 | 7 | 40 | 24.6 | 9.7 |
| 7 | 7.5 | 40–41 | 25.0 | 9.8 |
| 7.5 | 8 | 41 | 25.5 | 10.0 |
| 8 | 8.5 | 42 | 25.9 | 10.2 |
| 8.5 | 9 | 42–43 | 26.3 | 10.4 |
| 9 | 9.5 | 43 | 26.7 | 10.5 |
| 9.5 | 10 | 44 | 27.1 | 10.7 |
| 10 | 10.5 | 44–45 | 27.6 | 10.9 |
| 10.5 | 11 | 45 | 28.0 | 11.0 |
| 11 | 11.5 | 46 | 28.4 | 11.2 |
| 11.5 | 12 | 46–47 | 28.8 | 11.3 |
| 12 | 12.5 | 47 | 29.3 | 11.5 |
| 12.5 | 13 | 48 | 29.7 | 11.7 |
| 13 | 13.5 | 48–49 | 30.1 | 11.9 |
| 13.5 | 14 | 49 | 30.5 | 12.0 |
| 14 | 14.5 | 50 | 31.0 | 12.2 |
| 14.5 | 15 | 50–51 | 31.4 | 12.4 |
| 15 | 16 | 51 | 31.8 | 12.7 |
| 16 | 17 | 52–53 | 32.6 | 13.0 |
| 17 | 18 | 53 | 33.5 | 13.3 |
| 18 | 19 | 54–55 | 34.3 | 13.7 |
| 19 | 20 | 55–56 | 35.2 | 14.0 |
Women's Shoe Sizes
| UK | US | EU | Foot Length (cm) | Foot Length (inches) |
|---|---|---|---|---|
| 3.5 | 5 | 36 | 22.1 | 8.7 |
| 4 | 5.5 | 36–37 | 22.5 | 8.9 |
| 4.5 | 6 | 37 | 22.9 | 9.0 |
| 5 | 6.5 | 38 | 23.3 | 9.2 |
| 5.5 | 7 | 38–39 | 23.8 | 9.4 |
| 6 | 7.5 | 39 | 24.2 | 9.5 |
| 6.5 | 8 | 40 | 24.6 | 9.7 |
| 7 | 8.5 | 40–41 | 25.0 | 9.8 |
| 7.5 | 9 | 41 | 25.5 | 10.0 |
| 8 | 9.5 | 42 | 25.9 | 10.2 |
| 8.5 | 10 | 42–43 | 26.3 | 10.4 |
| 9 | 10.5 | 43 | 26.7 | 10.5 |
| 9.5 | 11 | 44 | 27.1 | 10.7 |
| 10 | 11.5 | 44–45 | 27.6 | 10.9 |
| 10.5 | 12 | 45 | 28.0 | 11.0 |
| 11 | 12.5 | 46 | 28.4 | 11.2 |
| 11.5 | 13 | 46–47 | 28.8 | 11.3 |
| 12 | 13.5 | 47 | 29.3 | 11.5 |
| 12.5 | 14 | 48 | 29.7 | 11.7 |
| 13 | 14.5 | 48–49 | 30.1 | 11.9 |
| 13.5 | 15 | 49 | 30.5 | 12.0 |
| 14 | 15.5 | 50 | 31.0 | 12.2 |
Women's Upper-Body Clothing
| Size | UK | EU | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|---|
| XXS | 6 | 32 | 73–76 | 57–60 | 82–85 |
| XS | 8 | 34 | 77–82 | 61–66 | 86–91 |
| S | 10 | 36 | 83–88 | 67–72 | 92–97 |
| M | 12 | 38 | 89–94 | 73–78 | 98–103 |
| L | 14 | 40 | 95–101 | 79–85 | 104–110 |
| XL | 16 | 42 | 102–109 | 86–94 | 111–117 |
| XXL | 18 | 44 | 110–118 | 95–104 | 118–125 |
Men's Upper-Body Clothing
| Size | UK | EU | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|---|
| XS | 32 | 42 | 83–86 | 71–74 | 82–85 |
| S | 34 | 44 | 87–92 | 75–80 | 86–91 |
| M | 36 | 46 | 93–100 | 81–88 | 92–99 |
| L | 38 | 48 | 101–108 | 89–96 | 100–107 |
| XL | 40 | 50 | 109–118 | 97–106 | 108–116 |
| 2XL | 42 | 52 | 119–130 | 107–119 | 117–125 |
| 3XL | 44 | 54 | 131–142 | 120–132 | 126–135 |
Product-Specific Guidance
Climbing Shoes
Five Ten climbing shoes are engineered for precision and performance. These models typically feature a downturned, aggressive last designed to position your foot for optimal purchase on vertical terrain. For climbing shoes, fit should be snug but not painful—your heel should not slip when you point your foot downwards. If your foot measurement falls between two sizes, select the smaller size. Most climbers prefer a tight, moulded fit that develops over a few sessions. A properly fitted climbing shoe will feel firm across the midfoot and toeboxes when new and will pack out slightly with use.
Mountain Biking Shoes
Five Ten's mountain biking shoes balance performance with comfort over longer rides. These models use a stiffer sole for power transfer through pedals and a roomier toeboxes compared to climbing footwear. Select your true shoe size for biking shoes, as you need adequate space for circulation and to avoid pressure points during extended rides. Consider the thickness of socks you'll wear when riding—thicker technical socks may warrant sizing up by half a size.
Casual & Outdoor Shoes
Five Ten's lifestyle and casual outdoor shoes (including approach shoes) are designed for comfortable all-day wear. These fit true to size and offer generous toe accommodation and cushioning. Select your standard shoe size. If you prefer a snug fit, stick to your measured size; if you prefer roominess, consider half a size up.
Apparel Fit
Five Ten clothing runs true to standard sizing. When ordering jerseys, t-shirts, or base layers, refer to your chest measurement to find the correct size. Women's clothing is cut with a slimmer, tapered profile; men's clothing offers a standard athletic fit. For climbing-specific apparel, ensure adequate shoulder and arm mobility by checking the chest measurement rather than sizing up excessively.
Sizing Tips
- Measure in the afternoon or evening. Feet naturally swell throughout the day due to activity and gravity. An evening measurement will account for this expansion and ensure you're not selecting shoes that feel uncomfortably tight by day's end.
- For climbing shoes, prioritise a snug fit over comfort. These shoes are designed to pack out and mould to your foot. A shoe that feels slightly tight when new will typically reach optimal comfort within a few climbing sessions. If you're between sizes, choose the smaller size.
- Account for sock thickness. Thicker mountaineering or winter socks can add bulk. If you plan to wear thick socks regularly, consider sizing up by half a size. Measure with socks on if that's how you'll wear the shoes.
- Check both feet. It's common for one foot to be slightly larger. Always select a shoe size that accommodates your larger foot comfortably to avoid blisters and pressure points.
- Climbing shoe downturn is not for everyone. If you have sensitive toes or experience foot pain easily, try on models in person if possible or consult Five Ten's specific model guidance, as downturn and sensitivity vary by shoe model.
- Verify the EU size on the shoe label. Five Ten shoe sizing is precise, and EU sizes occasionally feature half and two-thirds increments (e.g., 40 2/3, 41 1/3). Always cross-reference your foot length in centimetres against the chart to ensure accuracy.
- Width considerations. Five Ten does not typically offer width-specific versions. Standard models accommodate a medium width. If you have particularly narrow or wide feet, try shoes on or consult customer service before ordering online.
- Break-in period for biking shoes. Mountain biking shoes require a short break-in but less intensive moulding than climbing shoes. Wear them on short rides first to ensure the fit is correct before committing to longer outings.