Air Spring FX technology Double rip tape fastening. The Cloud Mist Fst babies boots from Clarks show authentic craftsmanship thanks to the hand-stitched moccasin toe and butt seam detailing on the heel. The rich plum leather is a great colour for the season, while the veg tan leather details add subtle interest. Comfort and support is key for little feet that love to explore, so this shoe features Air Spring FX technology with soft linings for unbeatable cushioning, while the EVA sole keeps the style lightweight and a double rip tape fastening provides a secure fit.