DO YOU PREFER R3 OR R4 HEATED INSOLES?
Here we will tell you the difference between R3 and R4, you can choose according to your needs.
Model: R3 Remote Control Heated Insoles
Material: EVA
Shape: The shape design is relatively flat, more suitable for a variety of shoe types, a wider range of versatility
Heel High: 1.5cm
Arch High: 1.8cm
Size: 4size cut to fit design, woman: 35-40, men: 41-46
Blending Testing: 1000,000 times
Heated Area: Smallest cutting line(women size 35 and men size 41): toe to arch
Larger cutting line（for women size 40 and men size 46): forefoot
Model:R4 Remote Control Heated Insoles
Material: Mix density EVA + Nylon arch support
Shape: The shape design is more ergonomic and thinner, better fit for your feet
Heel High:
1. Ultra slim 0.5cm-0.7cm, fit to most shoes,
2. Heel support of extra protection and stability
3. Arch support,Good for flat feet arch-forming and fatigue relieve of longtime walking.
Arch High:
Size: 2 size: cut to fit design S:35-37 M:38-40 L:41-43 XL：44-46
Blending Testing: 1500,000 times
Heated Area: Smallest cutting line(women size 35 and men size 41): toe to arch
Larger cutting line（for women size 40 and men size 46): forefoot
Generally, the R3 will be better priced and more versatile, while the R4 has a more foot-friendly insole design, so you can choose according to your needs.
