SHOE SIZE GUIDE
Forstars Footwear shoes are designed to fit to the following foot measurements. Some brands may vary from these measurements but you can still use them as a guide.
All Forstars Footwear Products are in EU measurements.
Sizing Disclaimer: Due to international footwear sizing guidelines, it is possible that some items will have packaging labelled according to US or UK sizing conventions. Please be sure to try on the item to confirm the incorrect size before returning the item to us. Visit our returns policy page for information on how to return an incorrect item.
SHOE SIZES (Sneakers)
| WOMEN'S SIZES | MEN'S SIZES | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| US | 5.5 | 6.5 | 7 | 8 | 8.5 | 7 | 8 | 8.5 | 9.5 | 10 | 11 | 12 | 13 | |
| UK | 3 | 4 | 4.5 | 5.5 | 6 | 6 | 7 | 7.5 | 8.5 | 9 | 10 | 11 | 12 | |
| EUR | 36 | 37 | 38 | 39 | 40 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | |
| CM | 22.5 | 23.5 | 24.0 | 24.5 | 25.5 | 25.5 | 26.0 | 26.5 | 27.5 | 28.0 | 29.0 | 30.0 | 30.5 - 31.0 | |
HOW TO MEASURE
1. FOOT LENGTH
Measure your foot length by placing a ruler flat on the floor straight alongside the inside of your foot from your heel to your toes. To measure your feet stand on a level floor with the back of your heels against a straight edge or wall
Place an object with a flat edge straight across your toes with the edge touching the tip of your longest toe. Take the measurement (in millimeters) from the ruler where the flat edge crosses (see image below). This is your foot length measurement.

2. SELECTING A SHOE SIZE
If your foot measurement is halfway between sizes, select the larger size. You may find one foot is longer than the other, this is quite normal, please use the larger size when making your shoe size selection.
Shop On The Roger Pro Fire Clay tennis shoes at the best price in Kenya. Experience elite stability, grip, and performance on clay courts from Forstars Footwear.
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Engineered for elite clay-court performance, the On The Roger Pro Fire Clay is built for aggressive players who demand speed, stability, and control. Designed with input from Roger Federer, this high-performance tennis shoe delivers exceptional responsiveness and support during intense rallies.
A full-length Speedboard® enhances energy return and stability, helping you explode into sprints and recover quickly between movements. The reinforced upper with durable overlays protects against wear during slides, while the midfoot lacing cage locks your foot in place for confident lateral movements. Generous heel padding adds comfort, and the breathable construction ensures a secure yet flexible fit throughout the match.
Underfoot, the clay-specific outsole features deep herringbone grooves that provide superior grip and prevent clay buildup, giving you maximum traction for quick stops, slides, and sharp directional changes on court.
Built for high-level competition, this shoe combines durability, comfort, and explosive performance—perfect for players who want to dominate on clay.