Fossil Fleece High Neck Onesie

Coming soon

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Designed with both comfort and practicality in mind, making dressing and changing simple and easy

100% Organic: Certified organic fabric grown without chemicals, ensuring the purest touch for sensitive skin.

No Blends: Unlike many children's clothes, we use zero synthetic fillers—just 100% natural, honest fibres.

Description
A cosy and comfortable essential for little ones on cooler days.

Our Fossil Fleece High Neck Onesie is made from beautifully soft organic cotton fleece, offering a warm and cosy feel while remaining comfortable for everyday wear. The high neck provides extra warmth, while the relaxed shape allows little ones to move freely and comfortably.

Featuring charming contrast details and practical poppers between the legs, it is designed with both comfort and practicality in mind, making dressing and changing simple and easy.

Perfect for cosy days at home or as a warm layer during the colder months.

Organic Zoo clothes are unisex and made to be mixed and matched.
- 100% organic cotton fleece, 280g
- Soft and cosy fleece fabric
- High neck for extra warmth
- Contrast details
- Designed in the UK. Made in Europe
Please use the size chart link above to help you find the right size. Please remember that the age information is a guideline, so it is always best to measure your child.
Choosing the right size

Sizing is the most common question our customers ask about when gifting. So we've made it easy.

All Organic Zoo clothes are designed for comfort and a relaxed fit. With lots of boxy and roomy styles suitable for all body shapes, our clothes are less size-sensitive.

Here are our tips for shopping our sizes:

For a newborn - 0-3m will be a perfect fit for most babies for the first 3 months. You can choose a size up if you want more room to grow into.

For toddlers - we recommend sizing up with tops for a more relaxed look. For bottoms & onesies, choose the appropriate age size. If in doubt, always size up.

Onesie / High Neck Onesie

Age Length (feet not included) Width Sleeve

3-6 months 52.5cm 28cm 25cm

6-12 months 58.5cm 32cm 28cm

1-2yrs 65.5cm 36cm 31cm

2-3yrs 72cm 38cm 35cm

3-4yrs 80cm 40cm 38cm
Shipping + returns

WORLDWIDE SHIPPING
Find our shipping times & full costs here. Order by 1pm GMT and we will dispatch your order the same day!
Enjoy FREE shipping on orders of certain value for most destinations.
EASY RETURNS
We offer a 14-day right of return policy. Your item must be unused, unwashed, in the same condition you received it.
Read more FAQs on returning your order here.
All the details
- Material
  
  Cotton
- Pattern
  
  Solid Colour
- Brand
  
  Organic Zoo

Description
Choosing the right size
Shipping + returns
All the details

Fossil Fleece High Neck Onesie

A cosy and comfortable essential for little ones on cooler days.

Our Fossil Fleece High Neck Onesie is made from beautifully soft organic cotton fleece, offering a warm and cosy feel while remaining comfortable for everyday wear. The high neck provides extra warmth, while the relaxed shape allows little ones to move freely and comfortably.

Featuring charming contrast details and practical poppers between the legs, it is designed with both comfort and practicality in mind, making dressing and changing simple and easy.

Perfect for cosy days at home or as a warm layer during the colder months.

Organic Zoo clothes are unisex and made to be mixed and matched.

100% organic cotton fleece, 280g
Soft and cosy fleece fabric
High neck for extra warmth
Contrast details
Designed in the UK. Made in Europe

Please use the size chart link above to help you find the right size. Please remember that the age information is a guideline, so it is always best to measure your child.

Sizing is the most common question our customers ask about when gifting. So we've made it easy.

All Organic Zoo clothes are designed for comfort and a relaxed fit. With lots of boxy and roomy styles suitable for all body shapes, our clothes are less size-sensitive.

Here are our tips for shopping our sizes:

For a newborn - 0-3m will be a perfect fit for most babies for the first 3 months. You can choose a size up if you want more room to grow into.

For toddlers - we recommend sizing up with tops for a more relaxed look. For bottoms & onesies, choose the appropriate age size. If in doubt, always size up.

Onesie / High Neck Onesie

Age	Length (feet not included)	Width	Sleeve
3-6 months	52.5cm	28cm	25cm
6-12 months	58.5cm	32cm	28cm
1-2yrs	65.5cm	36cm	31cm
2-3yrs	72cm	38cm	35cm
3-4yrs	80cm	40cm	38cm