Fitness and Training Comparison Table
Use our handy comparison guide to help you choose the correct model for you.
| Vibe 2 | Flex 2 | Milo | Pace | Skeeby | Keld 3 | Tanga 3 | |
|---|---|---|---|---|---|---|---|
 |
 |
 |
 |
 |
 |
 |
|
| Price | $110 | $100 | $115 | $115 | $110 | $95 | $100 |
| Best for | Lightweight, stylish trainer for everyday wear and exercise. | Casual everyday wear for gym, light trails, and pavements. | Tough multi-use training: cycling, court sports, strength training, and gym. | Maximum shock absorption for transition and longer time on hard surfaces. | Active days, travel, and warm-weather urban use with breathable comfort. | Lightweight travel and hot, dry trails with breathable comfort. | Lifestyle and light training: yoga, pilates, leisure, easy slip-on wear. |
| Waterproofness | Quick-drying | Quick-drying | Quick-drying | Quick-drying | Quick-drying | Quick-drying | Quick-drying |
| Upper material | BottleYarn FlyKnit | BottleYarn | BottleYarn | CoffeeYarn FlyKnit | BottleYarn | BottleYarn | CoffeeYarn |
| Outsole | UrbanGrip | UrbanGrip | UrbanGrip | MultiGrip | UrbanGrip | TrailGrip | UrbanGrip |
| Insole | ReBound | Flexile | FlexileNano | Ortholite 6mm | ReBound | ReBound | Flexile |
| Midsole | SoftFlex | SoftFlex | MidFlex | SoftFlex | SoftFlex | SoftFlex | SoftFlex |
| Stack height (with / without insole) | 10.5mm / 6.5mm | 9.5mm / 6.5mm | 9.5mm / 7mm | 11.5mm / 5.5mm | 10.5mm / 6.5mm | 10.5mm / 6.5mm | 9.5mm / 6.5mm |
| Weight (pair, size 42) | 470g | 470g | 580g | 452g | 540g | 435g | 460g |
MEASURING YOUR FOOT
Sometimes as a second check it is worth measuring your foot. Feet can be different sizes so its worth measuring both and taking the largest.
Standing next to a wall place a piece of paper against the wall. Place your foot on the paper with your heel just touching the wall.
The lengths shown are the Insole lengths (the actual shoe length will be 2 or 3 mm longer).
ADULT
| INSOLE LENGTH | WIDTH | USA | EU |
|---|---|---|---|
| 236mm | 88mm | W 6 | 37 |
| 242mm | 89mm | W 7 | 38 |
| 249mm | 90mm | W 7.5 | 39 |
| 257mm | 92mm | W 8.5 | 40 |
| 262mm | 93mm | W 9 / M 8 | 41 |
| 268mm | 95mm | W 10 / M 8.5 | 42 |
| 275mm | 98mm | W 11 / M 9 | 43 |
| 284mm | 100mm | M 10 | 44 |
| 290mm | 101mm | M 11 | 45 |
| 295mm | 102mm | M 12 | 46 |
| 300mm | 104mm | M 13 | 47 |
| 307mm | 106mm | M 14 | 48 |
| 313mm | 107mm | M 15 | 49 |
KIDS
| INSOLE LENGTH | WIDTH | USA | EU |
|---|---|---|---|
| 176mm | 79.5mm | 10.5 | 27 |
| 183mm | 81mm | 11 | 28 |
| 189mm | 82.5mm | 12 | 29 |
| 195mm | 84mm | 13 | 30 |
| 201mm | 85.5mm | 1 | 31 |
| 207mm | 87mm | 1.5 | 32 |
| 214mm | 88.5mm | 2 | 33 |
| 221mm | 90mm | 3 | 34 |
| 228mm | 91.5mm | 3.5 | 35 |
| 234mm | 93mm | 4.5 | 36 |
| 240mm | 94.5mm | 5 | 37 |
| 246mm | 96mm | 6 | 38 |
- The next stage is easier if you get someone else to help do it.
- Take a pencil or pen and trace the outline of the foot on the paper.
- Start at the heel.
- Keep the pen at 90 degrees to the paper, so vertical, see diagram.
- Don't draw under the foot.
If possible, please work from the EU sizes (the US and UK sizes are nearest conversions to these sizes so will not be as accurate). The lengths and widths are the dimensions of the insole in mm measured as per the picture below:
Suitable For:
Trail Running & Hiking
Key Features
MountainGrip Outsole & Durable Trail Upper
Sustainability
Upper 60% recycled (BottleYarn)
Freet Fit
Wide Toe Box, Zero Drop, Flexible
Grip
Waterproofness:
Upper
Lining:
Connection & Comfort
Insole:
Midsole:
PRODUCT DETAILS
About Calver
- Performance barefoot shoe suitable for running and hiking on softer trails
- Open weave mesh for breathability, fast water drainage and quick drying
- Calver, named after a favourite local hill and shoe test-centre
Stack Height:
Weight:
SUSTAINABILITY
SIZE & FIT
CARE INSTRUCTIONS
SHIPPING & RETURNS
Answer
Customer Reviews
I got these for my 25 K trail race and they are awesome! Light while still protecting my toes from medium sided loose rocks, hidden roots and good traction in soft gravel and sand sections. Perfect shoe for the race, spending as many miles on these in training now with a 50K coming up in the falls.
Great grip for on grass, dirt and gravel. I am an 11.5-12 mens US and the Calver in 12 is a perfect fit for me
Very confortable and light ! My husband is getting the same ones.
Love these! The trend is perfect for more aggressive trails.
Not my finest idea, but having never worn this brand I tested them on a 15 mile night trail race on October in Scotland. Superb grip, loads of wiggle room, ability to lace up tighter around the ankle to prevent my toe stubbing on the downhill and not a single blister or hotspot. I sized up as per the fit guide. I will definitely be buying from this brand again.