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First Layers One Piece In Organic Cotton by Hanna Andersson
  • First Layers One Piece In Organic Cotton by Hanna Andersson
  • First Layers One Piece In Organic Cotton by Hanna Andersson

First Layers One Piece In Organic Cotton

$16 $11.20
Item # 44634

Just the lightest, softest knit ever in pure organic cotton, with a huggably close first-layer fit that's perfect...Read More

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Product Details


Just the lightest, softest knit ever in pure organic cotton, with a huggably close first-layer fit that's perfect for layering. Beautifully made one piece won't come untucked, so it stays neat on your wiggling cutie. Stretches gently (a must for diapers!) and springs back to shape with every wash.
•Expanded baby/toddler sizes = a perfect fit for every little one
•100% lightweight organic cotton ribbknit
•Super-smooth flatlock seams
•Easy lap shoulder design
•Crotch snaps for quick changes
•Certified by OEKO-TEX® Standard 100 | 03.U.9375 - FI Hohenstein

Item # 44634


Machine Wash Warm
Inside Out With Like Colors
Non-chlorine Bleach As Needed
Tumble Dry Low
Cool Iron As Needed

Shrinkage: Minimal

Baby & Toddler Sizes

Our Size Height Weight US Size
newborn up to 19 in up to 8 lbs newborn
50 cm 18-22 in 8-12 lbs 0-3 mos
60 cm 22-26 in 12-16 lbs 3-6 mos
70 cm 26-28 in 16-20 lbs 6-12 mos
75 cm 28-30 in 20-24 lbs 12-18 mos
80 cm 30-32 in 24-27 lbs 18-24 mos
85 cm 32-34 in 27-30 lbs 2T
90 cm 34-38 in 26-33 lbs 3T

Garment Measurements (all measurements are in inches)

Size NB 50 60 70 75 80 85
Sleeve Length (from center back) 5⅞ 7⅛ 7⅞
Shoulder to Crotch 13¼ 14 15¼ 15⅞ 16½ 17⅛ 17¾
Width (1" below armhole) 15½ 16½ 17½ 18 18½ 19½ 19½


Our pure organic cotton hannas are one way we can touch the future right now. Organics nurture kids sensitive skin with supersoft purity, while caring for farmers and our earth with non-toxic ecosystems. They're grown without chemical pesticides or fertilizers, and have no genetically modified organisms. Our commitment to organics is seven million supersoft-and-cozy pieces strong, and just like kids, it's growing every minute.


This is good for everybody. Over 60% of all hannas are certified by OEKO-TEX® Standard 100, which means they're tested down to the very last strand of thread for over 100 harmful substances, using strict European certification standards. We agree with the fan who said, "Oeko-Tex 100 equals 100 fewer things to worry about!" Our certification number is 03.U.9375 - FI Hohenstein.

Eco-friendly fabrics live image

Our Unconditional

If you’re unhappy with a product at any time for any reason, just bring or send it back to us, and we’ll refund the purchase price or replace the item. It’s as simple as that.

First Layers One Piece In Organic Cotton is rated 4.7 out of 5 by 7.
Rated 4 out of 5 by from top stretches easily Very comfy for baby, but the top of the onesie does stretch a good amount, so is fairly loose fitting.
Date published: 2017-03-11
Rated 4 out of 5 by from Basic Onesie Good quality, excellent craftsmanship. I gave only four stars since it is very pricey. I saw a competitor's brand of almost as high quality but significantly cheaper. Not sure the Hanna was worth the extra cost.
Date published: 2017-03-05
Rated 5 out of 5 by from Super soft! These onesies are super soft and comfy for baby! They are also a great quality that will last. I would say they are a little on the big side, which is great for baby to grow into! Will definitely be buying more.
Date published: 2017-02-07
Rated 5 out of 5 by from Perfect for everyday These are our go-to onesies for everyday. They are soft and comfortable for my one year old and well made. I try to buy organic clothing for her as much as possible so I really appreciate that Hanna has organic cotton options.
Date published: 2016-08-14
Rated 5 out of 5 by from sweetest one piece I have seen This tiny one piece is the softest one I have ever touched. All the seams are soft, especially for a little one's precious skin. I am so glad to have purchased this item for my soon to be first grandchild, a little granddaughter - love it!
Date published: 2016-06-08
Rated 5 out of 5 by from So so soft! This is the softest cotton onesie we own. It is the softest of the Hannah's as well. LOVE this, wish all of their stuff was this soft!
Date published: 2016-04-24
Rated 5 out of 5 by from The perfect everyday baby item! I bought this onesie in every color suitable for my little boy! We live in an area that is warm during the day but cools down at night. This is the best baby onesie because its made of top quality pure organic cotton, so I feel at ease, it's easy to layer, and so soft and sweet to wear alone. I highly recommend these onsies!
Date published: 2016-01-25
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