Sometimes bare feet are cold feet and your little explorer needs a little extra warmth. Helios Liners are specifically made to fit Traveller, Trekker, Explorer, Wanderer and Muddy Munchkins boots. The seams strategically placed on the outside so they will keep toes warm without irritating little feet. Constructed of 100% polyester double pique fleece with anti-pilling on the backside, Helios liners with wicking properties will keep little feet cozy in MyMayu boots all year long!
For sizing see here .
How To Put on MyMayu boots with liners