There can be some fog issues during winter due to temperatures difference in body heat and outside temperature. 

First Lens kids Powered Swimming Goggles with UV Protection & AntiFog006 - Blue

Product description (First Lens kids Powered Swimming Goggles with UV Protection & AntiFog006 - Blue)

Product: Swimming Goggles Brand Name: Firstlens  Product Type: Swimming Goggles

Description

Product Details:

1. Brand: First Lens
2. Design: Leakproof, Anti-fog
3. Shape: Universally designed to fit most face shapes, including round, oval, slender, melon, square faces, and more.
4. Seal: Equipped with shock absorption and pressure seal technology for enhanced comfort and water-tight protection.
5. Straps: Features high-flexible straps with adjustable length, ensuring a secure and personalized fit.

Applicable People: Specifically tailored for children.

Color: Elegant Blue, offering a clean and timeless look.

Material: Constructed with a combination of durable PC (polycarbonate) and comfortable silicone, ensuring longevity and comfort.

Size: 140x58mm, providing a versatile fit for a wide range of facial dimensions.

Package Contents: 1 x Swimming Goggles

Color: Blue

Material: Soft silicone material

Package: Individually packed in PVC box