Vivobarefoot Thermal Insole for Toddlers – Red

Keep little feet warm without losing the barefoot feel

Give your toddler extra warmth in cooler weather while keeping that natural, barefoot experience. The Vivobarefoot Thermal Insole uses Outlast® technology, originally developed by NASA, to help regulate temperature – absorbing, storing and releasing heat as needed.

How it works

This smart thermal layer responds to the naturally changing temperature of children’s feet. When their feet warm up, the insole helps absorb and store excess heat. As they cool down, the stored warmth is released back, helping to keep them comfortable for longer.

Key features

• Outlast® technology: Temperature-regulating material developed for NASA applications.
• Designed for toddlers: Sized to fit Vivobarefoot toddler shoes.
• Minimalist-friendly: Adds warmth while keeping a thin, flexible feel underfoot.
• Easy to use: Simply insert into compatible Vivobarefoot toddler shoes for extra insulation.
• Colour: Red.

Perfect for autumn and winter adventures, the Vivobarefoot Thermal Insole helps keep small feet cosy while staying true to the barefoot philosophy.

Vivobarefoot Kids Size Chart

Ensure a perfect fit for growing feet with AdventureCo’s Vivobarefoot size guide for toddlers, kids, and juniors—plus tips for natural fit and return reassurance.

How to Check Fit

Vivobarefoot intentionally fits on the larger side—allowing toes to splay naturally. You’ve likely got the right size if you can easily fit a thumb between your child’s longest toe and the front of the shoe. As feet grow and toes splay, sizes may increase over time.

You can return unused shoes within 365 days for a full refund or store credit. No stress—just the right fit!

Toddler Size Guide

Kids Size Guide

Junior Size Guide