Kokiri Mercury Birch Trees Woven Wrap Baby Carriers

(6 customer reviews)

Blend: Cotton, Linen



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  • Ethically woven in the UK
  • Handsewn
  • Small, limited collections
  • Worldwide shipping

Kokiri Mercury Birch Trees is a 70% organic combed cotton 30% linen wrap, woven using our Alchemy weave. This airy and fluid weave means that at 325GSM, Kokiri is thick but still wraps easily. The Peruvian linen gives it a chunky texture and a nice sliding grip. This wrap can easily support even heavy toddlers!
Each of these wraps are slightly unique, due to variance in the tone and hue of the linen weft used throughout the weave run. They all have the same olive and spring green cotton weft alternated throughout the cloth. There are a few wraps that have a more striking difference in colour, and those are listed separately for clarity.

You can read more about it on our wrap database



Woven Wrap Sizing

Wrap sizes don’t work in the same way as clothing.

Size numbers refer to the length of the woven wrap- the larger the number, the longer the wrap.

Each size is 50cm (20”) longer than the previous size.

SIZE 1 = 2.2M (7’2”)
SIZE 2 = 2.7M (8’8”)
SIZE 3 = 3.2M (10’ 8”)
SIZE 4 = 3.7M (12’)
SIZE 5 = 4.2M (13’8)
SIZE 6 = 4.7M (15’4”)
SIZE 7 = 5.2M (17’)
SIZE 8 = 5.7M (18’7”)
SIZE 9 = 6.2M (20’3”)

Each length offers different options for tying, so there isn’t a single size that will ‘fit you.

Your body size will determine how big a wrap you need for tying each specific carry. For example, the Front Wrap Cross Carry is a popular starter carry. Some people will be able to use a size 6 for this carry, but others may need a longer (or shorter) wrap depending on their body and baby size.

Read more about understanding wrap sizes

Read more about choosing the right size of wrap for you


Brushed Cotton Blankets

Our blankets come in two sizes:

Double- 160cm x190cm approx (63″ x 75″)
King Size- 160cm x 220cm approx (63″ x 87″)


Our Ponchos are one size. Height is a bigger factor than dress size when it comes to fit, and they will fit most bodies under 6′ tall! The Poncho is approximately 105cm long at the front, from the base of the neck to the longest taper point (not including the cowl neck), and approx 66cm long at the shoulder, from the base of the neck to the highest point of the hem

Babywearing Bags

Absolute Bobbins:
The main body of the bag is approx 30cm x 30cm x 16cm
The adjustable strap is 180cm to the taper end, and 35cm wide

The zip opening is 30cm wide and the base of the bag is 40cm. It has a depth of approx 30cm and a 10cm wide base.
The adjustable strap is 165cm to the taper end, and 20cm wide

Scarves and Cowls

Full width Cowl full wrap width (approx 70cm),
95cm circumference
Scarf half wrap width (approx 35cm)
2.2m length
Loop scarf half wrap width (approx 35cm)
1.45m circumference

6 reviews for Kokiri Mercury Birch Trees Woven Wrap Baby Carriers

  1. Kate Krengel (verified owner)

    Kokiri is strong and sturdy, but the linen is not as intense to break in as some other recent linen blends (whinlatter is definitely more beastly). It’s got some good grip, and is still reasonable to use on a young baby. Plus the green being different on each wrap is such a neat feature, giving a one of a kind wrap to each of us!

  2. Christina Fordyce (verified owner)

    I bought Kokiri in a size 4 which is about a base-1.5 or 2 for me (we might be in between sizes). In my opinion this is the perfect size for this wrap.
    First impressions:
    This was the first time I’ve felt a loomstate wrap so these thoughts might be normal but it was a really interesting experience for me. Straight out of the bag it was so uniform and flat in the threads and pretty rough to the touch. It felt pretty stiff and not a lot of drape. The colors made me smile and the wrap shimmered. After one wash, dry, and iron it fluffed up immensely! I was immediately struck by how one wash made it softer (though it’s still not a “soft” wrap). I was amazed by the texture. This is such a chunky, fun texture which the more I learn about Firespiral I think is because of the alchemy weave. The contrast is really amazing. Now that I’ve owned it almost a year, it has taken on that lovely “buttery” linen feel. It has broken in beautifully.
    The first carry we tried was ruck tied in front. I had my 20-lb boy up for at least 20 minutes for breakfast prep very comfortable with very little shoulder strain. Though most wouldn’t describe linen blends as having “cushion”, I feel like there is a certain kind of cushiness that can be achieved with a blend like this. It’s heftier and thicker than any linen blend I’ve tried (for reference I’ve tried Gamma starmap and Indigo COP). The thickness lends itself to a more cushioned feel than either of those thinner wraps I’ve tried. We tried semi pocket wrap cross carry later that day. It proved to help a cranky baby fall asleep. It holds a slip knot like a BOSS. We tried twisted pirate today so I could try out a multi pass back carry. Perfect slip knot once again. The grip to glide ratio has more grip than glide but still slippy enough with the Mercury warp for a pass to get in place nicely. There is a decent amount of diagonal stretch which gives just enough bounce to a carry but the linen blend helps it remain extremely supportive.
    They are everything I wanted them to be. This wrap is gorgeous. The warp side is so lovely making me think of spring trees against a cloudy sky. The weft side is truly breathtaking. My wrap has the light spring green, a very light almost creamy color, and an olive green. The olive almost hides in the Mercury warp which, though grey, does have those olive tones. The effect is this shimmery green that changes in the light making all the wrap colors (both sides) either contrast nicely, all appear greyish, or all appear greenish.
    Final thoughts
    This is a great wrap. I’m starting to think I do like some of the wool blends more, but my first love was linen. For linen lovers this is your wrap. The medium weight makes it easy to work with while remaining supportive, the texture is incredible, and the colors are absolutely stunning. It’s a great all rounder and is the wrap I reach for the most in my stash.

  3. Nena

    Firespiral Kokiri – Mercury, Birch Trees
    GSM: 325
    Size: 4
    Blend: 70% combed cotton 30% Peruvian linen

    Great all-around ruck shorty!
    First of all, I want to mention the scent of warp. It was my first time feeling that some wrap has her scent, and although I’m a scent-free kind of person I liked it!
    This wrap is thick but airy, nicely pleats on shoulders, and passes glide easily.
    I do miss a bit of grip but I loved the texture of the wrap and couldn’t stop touching it while wearing 😆

  4. Alice (verified owner)

    We love this wrap! Wish we’d known about woven wraps when little man was a colicky newborn. The closeness of a stretchy wrap with WAY more support plus something nice and stylish for mama! We learned over lockdown and fell in love with some second hand fispis-this is our first one bought new.

    Anyways, about the wrap:
    -we got a size 3 and we find it wraps a little short but it doesn’t matter because it holds a half knot or tippy tail knot like a boss!
    -it is EVERYTHING you’d want from a linen wrap: blankety soft when broken in, forgiving, supportive even for my giant toddler (and over my pregnant belly), weatherproof, passes are grippy but still easy enough to form.
    -it is thick and I worried it might be too much for newborn baby on the way but has recently managed to put a friends’ newborn to sleep with ease. Will be lovely in the winter.
    -the pattern is lush AND it hides all multitudes of muddy/grassy toddler business even when we’ve used it as an impromptu picnic blanket. Of course it also washes easily when it gets too muddy haha!

    Keep making lovely wraps firespiral!

  5. Amy Housden (verified owner)

    Kokiri has been an absolute dream for us in a size 2 wrap! With an ever growing little one this is a base-4 for me but is ever so supportive in a ruck and doing a tsc! The grip that kokiri provides is incredible in a tsc and helps make it feel super secure without being too grippy to adjust and use! Thank you for another lovely wrap 🙂

  6. Heather (verified owner)

    I absolutely love our wrap and have really enjoyed getting to grips with it.

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Matching pair, Size L, many colours available.


Kokiri Mercury Birch Trees 30cm wrap scrap square A piece of unhemmed wrap cloth measuring at least 30cm by 30cm. These are excellent for small craft projects. Standard class, untracked shipping is included in the price.

Kokiri Mercury Birch Trees Woven Wrap Baby Carriers
£158.00£169.00 Select options
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