Manual measurement may cause a 1 cm deviation. For slim feet, low instep, or between sizes, it is recommended to choose one size smaller. Suggested sizing formula: foot length + 0.5–1 cm = insole length.
Designed specifically for children's growth with international certifications
Passed over 50 harmful substance tests including heavy metals, odors, and phthalates
Developed with input from bone scientists and Nobel Physics laureates
Specially engineered ankle-protecting rain boots to support foot and ankle health
Soft, lightweight, and flexible for comfortable wear during developmental stages
One-piece molding construction ensures no seams and waterproof performance
Waterproof rating suitable for heavy rain conditions, tested for 16 hours of water resistance
Anti-slip sole with zoned tread design
Forefoot: Raised patterns for strong friction and grip
Heel: Wave patterns to prevent slipping
Enhanced boot shaft height (approx. 18 cm) with 10% increased height for better protection
Adjustable drawstring closure to prevent water and mud ingress
Protective features include reinforced toe cap and heel for impact resistance and ankle support
Foldable boot shaft for easy storage and portability
7A antibacterial insoles inhibit bacterial growth and odor
Easy to clean surface; dirt washes off with water effortlessly
Additional details
Certified to meet ISO16181-1
2021 for chemical safety
Exceeds national standards for slip resistance (HG/T3780-2005 Method 2) and waterproof performance (HG/T3664-2015)
Reflective safety elements for visibility in rainy or low-light conditions
Suitable for urban and outdoor activities including school, camping, farm visits, and beach play
Designed to provide stable support and comfort for active children
Over 600,000 units sold from January 2023 to February 2026 across online platforms
Kocotree (KK Tree) is dedicated to children’s outdoor footwear with 17 years of research and development. The brand encourages children to explore nature freely and creatively, combining scientific expertise with playful design to protect and support growing feet.
