This has been used for sand and mud play, and even on rainy days. The material is thick, so it might be hot in the summer, but I think it will keep you warm during outdoor play in the winter, as it blocks the wind. If you use a water repellent spray, the water repellency will be further enhanced. Size: When a child who is 92 cm tall wears it, the hem rides up when they squat, making it seem difficult to play. I think it would be perfectly fine for children's clothes for children who are around 90 cm tall or less. Colorful vehicle print children's raincoat, made of polyester and hand washable. - Design: Colorful print of vehicles and taxis - Material: Polyester (100%) - Size: S - Washing instructions: Hand wash, do not bleach, do not iron Thank you for looking.