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Xero Size Chart

Xero Shoes, founded in 2009 in Colorado, USA, were born from a passion for barefoot running. Known for their innovative designs, Xero Shoes offers a range of running shoes, sandals, and versatile everyday footwear that support natural movement.

At Happy Little Soles, we’re excited to stock both kids’ and adults’ options. A standout is the kids’ Prio trainers, a fantastic everyday choice for active feet. These trainers combine lightweight flexibility with barefoot-friendly features, making them perfect for play, sports, and adventures. Xero Shoes delivers comfort, durability, and the benefits of barefoot living for every age and activity level.

Little Kids

USA Size Internal Shoe Length (cm) HLS UK Size Size Links
7 14.7 6 View
8 6.5 11 View
9 16.2 7.5 View
10 16.9 8.5 View
11 17.7 9.5 View

Big Kids

USA Size Internal Shoe Length (cm) HLS UK Size Size Links
12 18.4 10.5 View
13 19.2 11 View
1Y 19.9 12 View
2Y 20.7 13 View
3Y 21.8 1.5 junior View
4Y 22.7 2.5 junior View

Adults Gracie Rain Boots

USA Size Internal Shoe Length (cm) HLS UK Size Size Links
5 22.4 2.5 View
6 23.2 3.5 View
7 24.0 4.5 View
8 24.8 5.5 View
9 25.6 6.5 View
10 26.4 7.5 View
11 27.2 8.5 View
12 28.0 9.5 View

Women's Boots, Nexus, Pagosa, Prio Neo, Waterproof Mesa & Zelen

USA Size Internal Shoe Length (cm) HLS UK Size Size Links
5 21.7 1.5 View
5.5 22.2 2 View
6 22.5 2.5 View
6.5 23.1 3 View
7 23.5 4 View
7.5 23.9 4.5 View
8 24.3 5 View
8.5 24.9 5.5 View
9 25.2 6 View
9.5 25.5 6.5 View
10 25.9 7 View
10.5 26.3 7.5 View
11 26.9 8 View
11.5 27.2 8.5 View
12 27.8 9 View

Women's Cassie & Phoenix

USA Size Internal Shoe Length (cm) HLS UK Size Size Links
5 22.4 2.5 View
5.5 22.8 3 View
6 23.2 3.5 View
6.5 23.6 4 View
7 24.4 5 View
7.5 24.7 5.5 View
8 25.0 6 View
8.5 25.5 6.5 View
9 26.0 7 View
9.5 26.6 8 View
10 27.1 8.5 View
10.5 27.5 9 View
11 28.0 9.5 View
12 28.7 10 View

Women's Dillon, HFS II, Mesa II & Sunrise

USA Size Internal Shoe Length (cm) HLS UK Size Size Links
5.5 22.7 2.5 View
6 23.1 3 View
6.5 23.4 3.5 View
7 23.8 4 View
7.5 24.4 5 View
8 24.8 5.5 View
8.5 25.3 6 View
9 25.7 6.5 View
9.5 26.0 7 View
10 26.3 7.5 View
10.5 26.9 8 View
11 27.3 8.5 View
11.5 27.7 9 View
12 28.1 9.5 View

Women's Sandals

USA Size Internal Shoe Length (cm) HLS UK Size Size Links
5 23.1 3 View
6 24.2 5 View
7 25.0 6 View
8 25.6 6.5 View
9 26.7 7.5 View
10 27.4 8.5 View
11 27.9 9 View
12 29.0 10 View

Men's Boots, Shoes & Trainers

USA Size Internal Shoe Length (cm) HLS UK Size Size Links
6.5 24.2 5 View
7 24.7 5.5 View
7.5 25.2 6 View
8 25.7 6.5 View
8.5 26.1 7 View
9 26.5 7.5 View
9.5 27.0 8 View
10 27.3 8.5 View
10.5 27.8 9 View
11 28.3 9.5 View
11.5 28.8 10 View
12 29.1 10.5 View
12.5 29.5 11 View
13 30.0 11 View
14 30.9 12 View
15 31.5 13 View

Men's Sandals

USA Size Internal Shoe Length (cm) HLS UK Size Size Links
7 25.8 7 View
8 26.5 7.5 View
9 27.4 8.5 View
10 28.1 9.5 View
11 28.8 10 View
12 29.7 11 View
13 30.6 12 View
14 31.4 13 View