Size guide

The size guide should be used as a guide as each child is unique. Also, there are slight sizing differences between brands and between countries. 

Generally we recommend that you measure your child's height and use this as a guideline along with the size guide below rather than just using your child's age to gauge the most suitable size.

Please rest assured should you purchase the wrong size you can return for free for all UK orders.

European  UK Sizes
56cm newborn
62cm 0-3 months
68cm 3-6 months
74cm 6-9 months
80cm 9-12 months
86cm 12-18 months
80-86cm 12-18 months
86-92cm 18-24 months
92-98cm 2-3 years
98-104cm 3-4 years
104-110cm 4-5 years
110-116cm 5-6 years
116-122cm 6-7 years
122-128cm 7-8 years
128-134cm 8-9 years
134-140cm 9-10 years
140-146cm  10-11 years

Mainio Dandy Frill Sweatshirt

£26.50 £13.25
SKU: 10001-134/140

Sweatshirt with a Dandy all  over check pattern. Features a frill detail on the shoulder, ribbed cuffs and a straight hem.

95% GOTS certified organic cotton, 5% elastane.

Machine wash 40 ̊C / 105 ̊F / wash

Mainio is a Helsinki based brand that creates sustainable kids clothing. All Mainio items are made using GOTS-certified organic cotton.



Washing at 30° keeps your clothes looking their best and helps the environment. 



UK Delivery Costs:

Expedited - £6.45 (1-2 working days)

Standard Delivery- £3.95 (2-5 business days)

FREE UK DELIVERY on orders over £35 (2-5 business days)

Purchases made on weekends or bank holidays will be processed the next working day.


Europe International Tracked - £12.95.

Rest of the world - £20.00

Deliveries outside the EU occasionally require additional duty fees, which you will need to pay for when you receive your items.

Import tax and other costs:

Deliveries outside the EU may be subject to custom fees/duties/import tax and it will depend on your delivery country. All charges and costs are the responsibility of the customer.

Please note that we are not responsible for all other taxes, surcharges, or currency exchange costs.



We hope that you will be very happy with your order. However, if for any reason you wish to return your order, you are very welcome to do so within 30 days of receipt provided that the items are returned in their original condition, unused, and with tags/labels intact.

Unfortunately, due to hygiene reasons, we cannot accept returns on underwear. Please note that swimwear must be tried on over underclothing. Also, please bear in mind that swimwear without the protective strip/tags cannot be accepted.

Please send returns to: 

Rosie & Cooey 
11 The Shearings
Hook Norton
OX15 5PT


Refunds are processed via the original payment method as soon as goods are received into our warehouse, please be aware that refunds can take up to 14 days (usually sooner) to appear in your bank account.

We offer free shipping for orders over £35 in the UK. However, if you have paid for shipping costs, we are unfortunately unable to refund these costs, unless the item is deemed faulty, damaged or you received the wrong item from us.

Please refer to UK Returns Policy and International Returns Policy below for further details.



In order to return your items to us please contact us via hello@rosieandcooey.co.uk for a UK free returns label applicable to full priced items. Please return the items within 48 hour of receiving UK free returns postage label as these cannot be re-issued. 

UK Returns labels are valid for 48 hours only, after expiry the customer will incur the cost of postage.

If you have simply changed your mind, we CANNOT refund your original postage costs.

UK Free returns labels DO NOT APPLY to SALE/CLEARANCE/OUTLET items.

For SALE/CLEARANCE/OUTLET items, a UK free returns label can only be provided if the item you received is deemed faulty or you were sent the wrong item by us.


Sale items are not eligible for free returns

Sale items must be returned within 14 days of receipt of goods.


1. If your item is faulty or damaged, please contact us at hello@rosieandcooey.co.uk. We will send a replacement item as soon as possible (depending on stock availability) or issue a refund once we have received and inspected the returned item.

2. If the faulty item or incorrectly received item being returned to us was originally part of a larger order (i.e. more than 2 items in the original order) in which you paid for shipping the original order, and if you are keeping the rest of the items in the order, we cannot refund the original shipping costs.

3. If the faulty item or incorrectly received item being returned to us was the only item in the original order and you paid for shipping the original order, we will refund the original shipping cost.


For international returns, the customer will pay for the cost of returning the items to us. It is the responsibility of the customer to ensure that we receive the returned items and we highly recommend that you use an international signed for service and proof of postage.

Product Images and Descriptions

We have taken every care to describe the products and provide photos as accurately as possible. However, there might be cases where slight variations may occur.

Cancelling your order

Under the Consumer Protection (Distance Selling) Regulations 2000, you have the right to cancel your order.

We may be able to cancel your order if the order has NOT been dispatched. Please contact us by telephone and advise us that you wish to cancel your order. Please note that once an order has been shipped it is no longer possible for us to cancel an order.

We are unable to combine orders, change the size, change the quantity, add items, edit your billing and shipping details to an existing order once it has been placed and processed. If your order cannot be cancelled, your order will be processed as normal and a confirmation email will be sent once it has been dispatched.

Incorrect or missing items

Rosie & Cooey will always to try and ensure that the items that you receive are exactly the items that you have ordered. However, sometimes errors can be made when fulfilling your order

If the item you have received is not what you ordered, please return it to us in its original, unused condition, and with labels/tags intact and we will forward you the correct item as soon as possible. We will send you a free returns label to send the incorrect item back to us.

If there is an incorrect item in your order or an item missing, please contact us by email at hello@rosieandcooey.co.uk

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