

Promo available
Baby Short Sleeve One Piece
Free shipping for orders over 291,99 zł for everyone. Promotion auto-applied on checkout.
Start 'em young! Get your baby rockin' with the Underdog Mentality with this cozy one-piece.
More details
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Nothing matters more than a baby's comfort, and this one piece is the right choice for all active babies. The envelope neckline and three snap leg closure ensure comfort throughout the day.
- 100% combed, ring-spun airlume cotton jersey
- Heather colors are 52% combed, ring-spun airlume cotton and 48% polyester
- Athletic Heather is 90% combed, ring-spun airlume cotton and 10% polyester
- Fabric weight: 3.9 oz/y² (132.2 g/m²)
- Side-seamed construction
- Envelope neckline
- Three-snap leg closure
EU GPSR Product Information:
- Manufacturer contact information
- Name: Joker Mag Store | Underdog Mentality Merchandise
- Email: tyler-1-shop@support.fourthwall.com
- Postal address: PO Box 5696 Santa Monica, CA 90405
- Additional information: This product is made for children. Meets the Sharp Points, Sharp Edges and Small Parts requirements, and lead, cadmium, phthalates, formaldehyde, bisphenols, azo dyes, Alkylphenols (APs) and Alkylphenol, Ethoxylates (APEOs), extractable heavy metals, fluorine, and forbidden and disperse dyes level requirements. 2 year warranty in EEA and UK, established by Directive 1999/44/EC.
Size & Fit
Quality Guarantee & Returns
- Quality is guaranteed. If there is a print error or visible quality issue, we'll replace or refund it.
- Because the products are made to order, we do not accept general returns or sizing-related returns.
Baby Short Sleeve One Piece Size Guide

Size label | Length | Width | Fits weight (lbs) |
---|---|---|---|
3-6m
|
20
|
9
|
12
|
6-12m
|
25
|
9
|
16
|
12-18m
|
28
|
10
|
22
|
18-24m
|
30
|
10
|
27
|