Our 4 year old loves the Blaze...he was so excited to wear it. He usually wears 5T in crankcases/old fleet and it was definitely a bit bigger. However, it's not so big that it doesn't work! I would say it fits like a Youth XS. We love it.
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Kid Nation Kids' Tagless Long Sleeve V π Neck T-Shirts 4-12 Years - 2 Packs and 3 Packs
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π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
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Arctix Youth Pants Reinforced: Large Boys' Clothing for Active Adventures
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45 Review