This infant long sleeve romper is a winner of Mom's Choice Gold Award. Made from our climate-smart ClimaCuddle™ fabric, it is super breathable and temperaure-regulating naturally. Soft on sensitive skin and designed with a stretchy fit that won't ride up during tummy time.
1. ClimaCuddle™ climate-smart fabric: 50.8% rayon from bamboo | 49.2% Merino wool
2. Two-way zipper
3. Fold-over cuffs for warmth and scratch protection
4. Underarm gusset for easy movement
5. Machine washable: convenient for everyday care.
6. Temperature-sensing sticker signals to adjust layers
7. A personalized embroidered romper adds a unique touch to your baby's moments.
ClimaCuddle™ Smart-Climate Fabric
Innovative blend by KaiyaBaby: 50.8% bamboo rayon+49.2% Merino wool
Key Benefits:
✓ Temperature-Regulating
Merino wool traps warmth in chill, breathes in heat
Bamboo rayon wicks moisture & releases excess heat
✓ Durability & Comfort
Shrinkage-resistant & fade-resistant
Softer than traditional wool (no itch)
Reduced pilling vs. standard bamboo fabrics
✓ Performance vs. Cotton
30% more breathable*
2x faster drying time*
Superior insulation for all-season wear
Ideal for shifting seasons and sensitive skin.
Fabric Safety Certifications
The ClimaCuddle™ fabric is tested and certified by SGS and meets Oeko-Tex® Standard 100 requirements, ensuring it is non-toxic and safe for your baby's irritable skin.
Care
For best results, machine wash cold (≤30°C/86°F) on a gentle or wool cycle.
Fasten zippers and use a laundry bag.
Mild detergent only (no bleach)
Lay flat or tumble dry low heat.
Avoid high heat to prevent shrinkage.
| Size | Height | Weight |
| 0-3 Months | 21-23"(53-58CM) | 9-12LB(4-5KG) |
| 3-6 Months | 23-27"(58-69CM) | 12-17LB (5-8KG) |
| 6-9 Months | 27-29"(69-74CM) | 17-22LB (8-10KG) |
| 9-12 Months | 29-31"(74-79CM) | 22-25LB (10-11KG) |
| 12-18 Months | 31-33"(79-84CM) | 25-27LB (11-12KG) |
| 18-24 Months | 33-35"(84-89CM) | 27-30LB(12-14KG) |
✓ Keep away from heat sources - our natural fabrics aren't flame-resistant
✓ Stay nearby during naps and playtime
✓ Please retire this romper if the zipper sticks or catches
Free shipping applies to orders over $89 within the continental U.S.
Order processing time: 1–2 business days
Estimated delivery time: 5-12 business day.
Please note:
1. Express Shipping is not available for P.O. Boxes and APO/FPO addresses.
2. Embroidery orders cannot be returned and require an extra 1–3 business days to process.
EASY RETURNS & EXCHANGES
Contact us within 45 days of receiving your order to request a return or exchange.
For full details, please see our Returns & Exchanges Policy.
If you have any questions, feel free to contact us.
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ClimaCuddle™ is Kaiya Baby's 2025 smart fabric innovation—a perfect blend of cloud-soft bamboo and temperature-regulating Merino wool. Designed for natural comfort and adaptability, it helps maintain baby's ideal temperature through shifting seasons and prevent overheating in summer. In addition, it's more resistant to pilling and fading compared to pure bamboo bodysuit, ensuring long-lasting softness.
Yes!Our smart ClimaCuddle™ fabric is breathable and temperature-regulating, preventing overheating while keeping baby comfortablely dry. Every thread is crafted with love and expertise to be naturally hypoallergenic, making it wonderfully gentle for most sensitive skin. (We do suggest testing a small area first if your little one has shown wool sensitivities before.)
Our size chart makes it easy—just match your baby's current height and weight. We recommend a cozy-snug fit (like a tender hug!) that allows for happy wiggles. If you're unsure, sizing up often works wonders.
Absolutely, busy parent! Just:
Of course. You've got 45 days to return or exchange as long as the item is in good condition. Just reach out to our customer support —we're here to help with smiles.
Our fabrics are Oeko-Tex® and SGS certified meaning absolutely no harmful chemicals—just pure peace of mind for you and safe snuggles for baby.
For extra cozy moments, layer with our sleep sacks, or blankets. Like wrapping your babe in a gentle hug!
Yes, Embroider a name, date, or sweet motif to create a cherished keepsake. Because these fleeting moments deserve to be remembered. Learn more
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