

Designed by Jim Philps, Trithotics® are generic, ¾ length podiatric style orthoses that are suited for treatment of pathology associated with a pronated rearfoot and help facilitate sagittal plane motion.
The design incorporates ‘tri-plane’ control which increases STJ supination moment by applying force medial to the STJ axis. The shape under the midfoot doesn’t restrict first ray function and the flat base under the heel provides stability.
Fitting
The length of the Trithotic is ¾ therefore fit to the length of the webbing. They do not need to be heat molded to the foot. They are ideal for slimmer shoes and children’s symptomatic pronation problems.

Sizes
Use the size chart below to find the correct Trithotics® for you
Adult Sizes Trithotic |
Adult XS | Adult S | Adult M | Adult L | Adult XL |
UK Size | 2 – 4.5 Womens | 5 – 6.5 Womens 5.6 – 6.5 Mens |
7 – 8 | 8.5 – 10 | 10.5 – 12 |
US Size | 5.5 – 7 Womens | 7.5 – 9 Womens 6 – 7 Mens |
9.5 – 10.5 Womens 7.5 – 8.5 Mens |
9.5 – 11 | 11 – 12.5 |
European | 35.5 – 37.5 | 38 – 40 | 40.5 – 42.5 | 43 – 44.5 | 45 – 47 |
CM foot size | 22 – 23 | 23.5 – 25 | 25.5 – 27 | 27.5 – 29 | 29.5 – 30.5 |
Length of X | 145 mm | 155 mm | 170 mm | 190 mm | 215 mm |
Child Sizes Trithotic |
Child S | Child M | Child L | Child XL |
UK Size | 5 – 7 | 8 – 10 | 11 – 13 | 1 – 2.5 |
US Size | 6 – 7.5 | 8 – 9 | 13.5 – 2 | 4 – 5 Womens |
European | 23 – 25 | 26 – 28 | 29 -32 | 33 – 35 |
CM foot size | 10 – 13 | 14 – 16 | 17 – 19 | 20 – 22 |
Length of X | 90 – 100 mm | 105 – 110 mm | 115 – 125 mm | 125 – 135 mm |
Order Form
Use the form below to place an order for Trithotics®