Done in a super-soft sweater knit fabric, the Colby Snap Booties in Navy Blue are ideal for little ones whose feet need extra warmth. KICK PROOF: Our snap booties stay on your baby's foot during crawling, cruising around, walking, or the roughest and toughest kicks! Our design comes past the ankle for a comfy, kick proof bootie that stays on tiny feet. Ideal for babies, infant and toddlers beginning to crawl and walk.