Frequently Asked Questions

For most kids (toddlers and up): order the size that matches your child's current age. UB items run true to size, so the age label is a reliable guide for kids who are 12 months and older.

For babies under 12 months: age-based size labels represent the bottom of a range — a "3 Month" garment is designed to fit from about 3 to 6 months. This means it may be noticeably large on a baby at the beginning of that range. Since these are holiday outfits that need to look right in season, we recommend sizing to your baby's current age rather than sizing up. If your baby is small for their age, or will still be under 3 months at the time of the holiday, check the weight and height measurements on the Amazon listing rather than going by the age label alone.

Check the detailed size chart on each Amazon product listing for chest, sleeve, and length measurements by age. When in doubt, ask us — we're happy to help you pick the right fit.

Great question — this trips up a lot of parents and gift-givers! Baby clothing sizes are labeled at the start of a range, not the midpoint. Here's how to read them:

• "3 Month" = fits approximately 3–6 months
• "6 Month" = fits approximately 6–9 months
• "9 Month" = fits approximately 9–12 months
• "12 Month" = fits approximately 12–18 months

What this means for holiday outfits: if your baby is currently 4 months old and the holiday is in 2 weeks, a "3 Month" will fit better than a "6 Month" — even though "sizing up" is common advice for everyday clothes. Holiday outfits are a special case because fit matters for the photos!

If your baby is under 3 months or small for their age, skip the age label and go straight to the weight/height measurements listed on each Amazon product page. Those numbers don't lie.

UB offers sizes from Newborn (NB) all the way through adult. Our kids' range covers 12 Months through 12 Years in most styles. Many collections also include adult sizing for the full family matching experience. Check individual product listings on Amazon for size availability per style.

Kids' Size Reference Guide:
12M: Chest 22.5" | 18M: Chest 23.5" | 2T: Chest 24.5" | 3T: Chest 25" | 4T: Chest 26" | 5T: Chest 27"
6Y: Chest 27.5" | 7Y: Chest 29" | 8Y: Chest 30" | 10Y: Chest 34" | 12Y: Chest 35.5"

Yes! Our matching sibling sets are designed so the same print or color theme is consistent across all sizes. Whether you're ordering a newborn onesie and a 6-year-old's dress, they'll look coordinated and adorable together in photos.

For toddlers and big kids: if they're right between two sizes, sizing up is usually safe — a little extra room is fine for most styles and they'll wear it comfortably through the holiday.

For babies under 12 months: this is where it gets more nuanced. Because baby size labels mark the beginning of a range (see the FAQ above), sizing up for a young baby can mean the outfit is genuinely too large for photos. In this case, match to your baby's current age or, better yet, check the actual weight and height measurements on the product listing. A well-fitting outfit photographs better and keeps baby comfortable through the holiday festivities.

Still unsure? Send us a message with your child's age and measurements and we'll point you to the right size.

Our most popular polo shirts and tops use a 95% Milk Silk Polyester / 5% Spandex blend — this gives an incredibly soft, cool, and comfortable feel with a little stretch. The fabric is gentle on sensitive skin and comfortable enough that kids won't fuss about wearing it.

All UB products sold on Amazon are required to meet U.S. CPSC (Consumer Product Safety Commission) standards for children's apparel, including flammability and choking hazard requirements.

Machine wash cold on a gentle cycle. Tumble dry low or hang dry to preserve the colors and shape. Do not bleach. For best results, wash inside out to protect any screen printing or embroidery details.

Yes. Our products are manufactured to U.S. safety standards. If your child has a known fabric sensitivity, we recommend the Milk Silk Polyester/Spandex blend styles as they are particularly soft and breathable. Check individual product pages on Amazon for material details on specific items.

Yes! Gift wrapping is available at checkout on Amazon. You can also add a custom gift message that will be included with the order. Perfect for baby showers, holiday gifts, and birthday presents.

A good rule of thumb: order the size that matches the child's age at the time of the holiday — not the size they'll grow into. For holiday outfits, fit right now matters more than longevity.

For a newborn gift (baby under 3 months at the holiday), check the weight and height measurements on the listing rather than the age label — newborn sizing can vary a lot. A "0–3 Month" or "3 Month" size is a safe general choice for most full-term newborns, but if the baby is on the smaller side, the weight chart is your friend.

Still not sure? Contact us and we'll help you pick the right size.

Absolutely! Simply enter the recipient's address at checkout on Amazon. Add gift wrap and a custom message, and Amazon will ship it directly to them — completely hassle-free.

All UB orders on Amazon come with Amazon's standard 30-day return policy. Items can be returned in their original condition for a full refund or replacement within 30 days of receipt. Amazon handles all return logistics — simply initiate a return from your Amazon order history.

Most UB items are fulfilled by Amazon (Amazon FBA), so Prime members typically receive orders within 1–2 business days. Standard shipping varies by location but is generally 3–5 business days. We recommend ordering at least a week before the holiday to ensure you get exactly what you ordered.

Yes! UB ships internationally through Amazon's Global Shipping program. International shipping rates and delivery times vary by destination — you'll see the exact shipping cost and estimated delivery at checkout on Amazon.

Amazon allows us to reach the most families across the country (and world!) with fast, reliable shipping and trusted customer protections. It also means you get the full Amazon shopping experience — reviews, easy returns, gift options, and Prime delivery. We focus on making great outfits; Amazon focuses on getting them to you quickly.

The easiest way is to go directly to our Amazon storefront: amazon.com/uniquebaby. From there you can browse all 12 holiday collections and shop our full catalog. You can also search "Unique Baby" in the Amazon search bar.

We'd love to hear from you! Head to our Contact page and send us a message. We're a small family business and we personally read every message.