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Stoneguard

Get underfoot protection on the trail, over rocks, debris, and tough terrain. Slip a removable StoneGuard™ insert into your trail shoes for a stable and soft underfoot feel. Made to fit into any shoe, this removable StoneGuard™ insert comes in a variety of size ranges designed to be cut to a desired size and inserted under any insole. The diamond-shaped plating allows for a stable ride throughout your run, along with flexible yet firm underfoot protection.

Regular price $20.00 Sale price $6.00
70% OFF
Color: Black

Color
Size: S

Size

size

Size Charts

FIND YOUR PERFECT FIT. Select your shoe category below to view the corresponding US, UK, EU and foot-length measurements.

Men's Footwear

Foot length is shown in centimeters.

US UK EU CM
7 6 40 25
7.5 6.5 40.5 25.5
8 7 41 26
8.5 7.5 42 26.5
9 8 42.5 27
9.5 8.5 43 27.5
10 9 44 28
10.5 9.5 44.5 28.5
11 10 45 29
11.5 10.5 46 29.5
12 11 46.5 30
13 12 48 31
14 13 49 32
CM MM
View measurements in CM

Use the CM column in the table above.

View measurements in MM

25 cm = 250 mm; 26 cm = 260 mm; 27 cm = 270 mm; 28 cm = 280 mm; 29 cm = 290 mm; 30 cm = 300 mm.

Women's Footwear

Foot length is shown in centimeters.

US UK EU CM
5 3 35.5 21.5
5.5 3.5 36 22
6 4 37 22.5
6.5 4.5 37.5 23
7 5 38 23.5
7.5 5.5 38.5 24
8 6 39 24.5
8.5 6.5 40 25
9 7 40.5 25.5
9.5 7.5 41 26
10 8 42 26.5
11 9 43 27.5
12 10 44.5 28.5
CM MM
View measurements in CM

Use the CM column in the table above.

View measurements in MM

21.5 cm = 215 mm; 22 cm = 220 mm; 23 cm = 230 mm; 24 cm = 240 mm; 25 cm = 250 mm; 26 cm = 260 mm; 27 cm = 270 mm; 28 cm = 280 mm.

How to Measure

01 — Place Your Foot

Place a sheet of paper against a wall and stand on it with your heel touching the wall.

02 — Measure Your Foot

Mark the tip of your longest toe and measure the distance from the wall to the mark.

03 — Find Your Size

Measure both feet and use the longer measurement as your reference.

PLEASE NOTE

This is a sample size guide inspired by a minimalist athletic brand layout. Verify all measurements against the official chart for the exact shoe model before publishing.

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Stoneguard

Stoneguard

Get underfoot protection on the trail, over rocks, debris, and tough terrain. Slip a removable StoneGuard™ insert into your trail shoes for a stable and soft underfoot feel. Made to fit into any shoe, this removable StoneGuard™ insert comes in a variety of size ranges designed to be cut to a desired size and inserted under any insole. The diamond-shaped plating allows for a stable ride throughout your run, along with flexible yet firm underfoot protection.