Features: Fabric: Quality A-class cotton fabric, soft and comfortable, skin friendly and breathable. Design: Unique design to avoid uncomfort and ensuring freely movement of the baby calves. fly prevention function: The unique mesh design effectively prevents fly bites and protects the delicate skin of baby. Length: Long tube design, suitable for spring and summer season, preventing fly bites while keeping calves cool. Suitable for age: Designed specifically for 0-5 years newborns and infants, perfectly fitting their calves. Specifications: Fabric: Combed cotton Color: refer pictures to selection please Size: XS/Small/M/L(Chinese Size, Follow the Size Chart to Selection Please) Practicality: Suitable for wearing in spring and summer, keeping your feet dry, suitable for daily activity and outdoor play Size:XS Recommended Foot Length:8-10cm(3.15-3.94inch) Suggested Age:0-6 Months Size:S Recommended Foot Length:10-12cm(3.94-4.72inch) Suggested Age:6-12 Months Size:M Recommended Foot Length:12-14cm(4.72-5.51inch) Suggested Age:1-3 Years Size:L Recommended Foot Length:12-14cm(4.72-5.51inch) Suggested Age:3-5 Years Package Includes: 1 Pair Socks note: Due to differences in height or age, they can use as medium tube socks or long tube socks. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.