My son is 5 years old and usually wears a size 5/6 but I bought him a size 7 which fits him. We don't have any trials yet, but we'll see if it keeps him warm.
Insulated Spruce Jacket for Boys by Arctix
62 Review
Maoo Garden Winter Quilted Boys' Clothing and Jackets & Coats: Stay Warm in Style
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HAPIU Toddler Waterproof Coverall Original Boys' Clothing in Jackets & Coats
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Adorable Arctix Kids' Dancing Bear Snow Suit Keeps Your Little One Warm and Stylish on the Slopes
56 Review
Funny Guy Mugs Tearaway Sweatpants: Playful Boys' Clothing for Fun and Active Days
49 Review
Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
46 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
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Waterproof Cozy-Dry Rain/Snow Pants for π§ Kids by JAN & JUL, with Fleece Lining
64 Review