Newborn Pure Cotton Side-Breasted Long-Sleeve Romper

Wrap your newborn in pure comfort and gentle protection with this Newborn Pure Cotton Side-Breasted Long-Sleeve Romper. Crafted from 100% pure cotton in an ordinary thickness, this all-season crawling suit is ideal for spring, autumn, and year-round indoor wear, offering soft breathability and warmth for delicate newborn skin.

Certified under strict Class A safety standards, the seamless construction ensures smooth, friction-free contact. Featuring a side-breasted (side-button) closure design for effortless dressing without pulling over your baby's head, along with a tagless collar to avoid scratching, this long-sleeve onesie is an essential addition to any newborn hospital layette or daily loungewear collection.

Key features and technical specifications include:

* Class A Safety Certified: Meets top-tier infant safety qualifications to ensure complete skin compatibility for sensitive newborn skin.

* 100% Pure Soft Cotton: Natural, breathable, high-quality cotton provides gentle softness and all-day cozy warmth.

* Convenient Side-Breasted Closure: Side-button design allows easy, hassle-free dressing and quick diaper changes without irritating delicate necks.

* Tagless & Seamless Design: Free of scratchy collar labels with friction-free seams to keep baby calm and comfortable day and night.

* Unisex Cute Cartoon Prints: Adorable, delicate cartoon character prints suitable for newborn baby boys and baby girls.

* Product Specifications:

* Product Category: Children's Home Clothes / Newborn Long-Sleeve Romper & Crawling Suit

* Origin: Henan, China (Source Factory)

* Target Gender: Unisex / Neutral (Both Boys and Girls)

* Age Range: Newborns & Infants (~0 to 1 year old; Height: 52 cm – 66 cm)

* Main Fabric Composition: 100% Pure Cotton

* Security Class: Class A Certified

* Thickness: Ordinary / All-Season Weight

* Style: Casual / Home Wear / Newborn Layette

* Season: Four Seasons / All-Season Use (Spring 2026 Release)

* Available Size Options:

* 52 cm (Preemie / Small Newborn)

* 59 cm (0–3 Months)

* 66 cm (3–6 Months)

* Available Pattern & Color Variants:

* Side-Breasted Jumpsuit - Pony

* Side-Breasted Jumpsuit - Xiaoshu

* Side-Breasted Jumpsuit - Little Bear

* Side-Breasted Jumpsuit - Little Rabbit

Whether for newborn hospital going-home outfits, peaceful nighttime sleep, or cozy daily crawling around the home, this 100% cotton side-breasted romper delivers soft, safe, and stress-free comfort for your baby.