marmar copenhagen baby bodysuit - navy - MarMar Copenhagen - Bodysuit
marmar copenhagen baby bodysuit - navy - MarMar Copenhagen - Bodysuit
marmar copenhagen baby bodysuit - navy - MarMar Copenhagen - Bodysuit
marmar copenhagen baby bodysuit - navy - MarMar Copenhagen - Bodysuit
OEKO-TEX® Organic Cotton

MarMar Copenhagen boyd baby long sleeve onesie navy

$41.80
Regular price $41.80
Size 6m

MarMar Copenhagen size guide

Fit: Runs slightly large. Room for growth

MarMar Copenhagen size chart
SizeHeight (in)(cm)Chest (in)(cm)Waist (in)(cm)Hips (in)(cm)Arm (in)(cm)Inner leg (in)(cm)
0M19.75015.439153815.7406.5177.319
2M225616.14115.74016.5427.1187.920
4M24.46216.94316.54217.3447.7208.522
6M26.86817.74517.34418.1468.6229.424
9M29.17418.54718.14618.9489.52410.426
1 YR31.58019.34918.54719.75010.52711.629
1.5 YR33.98620.15119.34920.55211.32912.833
2 YR36.29220.55219.75021.35412.23114.437
3 YR38.69821.35420.1512256133315.940
4 YR40.910421.75520.95322.85814.13617.544
5 YR43.311022.45721.35423.660153818.948

How to measure

Height: measure from the top of the head to the floor. For babies, lay them flat and measure from the top of the head to the heel.
Chest: measure around the fullest part of the chest, under the arms.
Waist: measure around the natural waistline.
Inner leg: measure from the crotch to the ankle.
Between sizes? Choose the larger size so there is room to grow.

Questions about sizing? Email customercare@ramababy.com


A rich navy ribbed organic cotton bodysuit with a classic henley neckline and long sleeves, elegant enough to wear as a standalone layer from day one.

  • Deep navy ribbed knit; three button henley placket at the chest with snap closures at the crotch
  • OEKO-TEX certified organic cotton, soft, breathable, and gentle on new skin

Size and fit
MarMar Copenhagen runs slightly large, with room for growth. Order their usual size.
Choose by your baby's height:

  • 2m: 22 in (56 cm)
  • 4m: 24.4 in (62 cm)
  • 6m: 26.8 in (68 cm)
  • 9m: 29.1 in (74 cm)
  • 1 yr: 31.5 in (80 cm)
  • 1.5 yr: 33.9 in (86 cm)

Details and care
47% Modal, 48% organic cotton, 5% elastane
Standard 100 by OEKO-TEX® certified
Machine wash 40°C extra gentle, Do not bleach, Do not tumble dry, Ironing: medium, Do not dry clean
Designed in Denmark, Produced by MarMar Copenhagen

47% Modal, 48% organic cotton, 5% elastane

Standard 100 by OEKO-TEX® certified

Machine wash 40°C extra gentle, Do not bleach, Do not tumble dry, Ironing: medium, Do not dry clean

Designed in Denmark, Produced by MarMar Copenhagen

Dispatched in 1–2 business days from Los Angeles, California.

Complimentary shipping on U.S. orders of $95+.

Expedited shipping options available at checkout.

Organic CottonOEKO-TEX CertifiedGift Ready

More where that came from

More about MarMar Copenhagen

MarMar Copenhagen is a beloved Danish baby and children’s clothing brand known for timeless design, heirloom quality, and everyday comfort.

Loved for its organic cotton, soft wool, muted colors, and playful prints, MarMar creates beautiful newborn, baby, and toddler clothing made to be worn, loved, and passed down.

At Rama Baby, we’ve handpicked a charming selection of MarMar Copenhagen onesies, leggings, tops, toys, and accessories for elevated baby gifts and everyday dressing.

Explore more MarMar Copenhagen

Take another look

your favorite little pieces

The easy outfit makers you’ll reach for again and again.

beautiful now, loved later

Garments that grow more meaningful with time, long after they’re outgrown.

quality that earns its place

Premium materials and thoughtful construction that make the piece worth the space.