I have a 4 yr old; what size should I order?

I got a size small for my little guy who is 3 and it is alittle big, so I would say small.

Our son is 8 now. How big of a child would the medium fit, please?

Medium 7-8 26-27" 23-24" 25-27" 48-51" 48-60 lbs. Large 10-12 28-30" 24-25" 28-30" 54-58" 60-87 lbs. item is a 'jumpsuit'

Kids Transformers | Desertcart Ireland

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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€ 57.34

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Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💥 Transform into the ultimate Autobot hero and own every room!

LEAD THE AUTOBOTS IN STYLE - Muscle-padded arms and chest deliver an authentic Optimus Prime look that commands attention.
COMPLETE HERO TRANSFORMATION - Includes jumpsuit, attached shoulder pieces, and iconic character mask for full cosplay impact.
DURABLE COMFORTABLE FABRIC - Crafted from 100% polyester with medium weight for all-day wear during Halloween or play.
OFFICIALLY LICENSED EXCELLENCE - Disguise’s trusted design ensures top-tier quality and screen-accurate cartoon-inspired artwork.
EASY MAINTENANCE FOR BUSY PARENTS - Spot clean recommended to keep the costume looking fresh for every heroic adventure.

This officially licensed Disguise Optimus Prime muscle costume features a muscle-padded jumpsuit and detailed mask made from durable 100% polyester. Designed for kids aged 4-6, it offers a loose fit with iconic cartoon-inspired artwork, perfect for Halloween, cosplay, or imaginative play. Easy to maintain and built to impress, it’s a top choice for young Transformers fans ready to lead the Autobots to victory.

Specifications

ASIN	B083TMWB69
Age Range Description	Little Kid
Apparel Fabric Stretch	No Stretch
Apparel Fabric Weight Class	Medium Weight
Best Sellers Rank	#7,776 in Toys & Games ( See Top 100 in Toys & Games ) #92 in Boys' Costumes #194 in Kids' Costumes
Brand Name	Disguise
Care instructions	Hand Wash Only
Closure Type	Hook and Loop
Collection Name	Transformers
Color	Optimus Prime
Costume Decade	1980s
Customer Reviews	4.7 out of 5 stars 2,466 Reviews
Fabric Type	100% Polyester
Fabric type	100% Polyester
Fit Type	Loose
Fit to Size Sentiment	Positive
Garment Size Country	United States
Holiday Type	Halloween
Included Components	Jumpsuit with muscle torso and arms, attached shoulder pieces, and character mask.
Item Type Name	Costume
Item Weight	4 ounces
Manufacturer	Disguise
Material	Polyester
Number of Items	1
Number of Packs	1
Occasion	Cosplay, Costume Party, Dress Up, Halloween, Make Believe
Part Number	104919L
Pattern	Costumes
Product Care Instructions	Hand Wash Only
Shoulder to Bottom Hem Length	30 centimeters
Size	Small (4-6)
Sleeve Length Description	Short Sleeve
Special Features	Costume
Special Sizes	Standard
Style Name	Optimus Prime
Style Number	104919L
Target Audience	Unisex-Kids
Theme	Movies
UPC	192995004818
Unit Count	1 Count
Warranty Description	No Warranty
character	Optimus Prime

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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