Sizing
Does it run small?
Yes, on purpose — it's meant to swallow you. Pick your size by height, not the letter: S 4'11"–5'1", M 5'1"–5'5", L 5'5"–5'9", XL 5'9"–6'1". If you're between sizes, size up.
Will it fit someone 6'1"?
XL fits up to 6'1" (185cm) and around 198 lb. Taller than that and it becomes a very committed three-quarter length.
Is it for adults or kids?
Adults and teens. The smallest size starts at 4'11".
Shipping
How long does delivery take?
Orders ship within 24 hours and arrive in 7–14 business days with tracking. You'll get a tracking link by email the moment it ships.
Where does it ship from?
From our fulfilment partner's warehouse. Every order is tracked door to door.
Is shipping free?
Free US shipping on orders over $60 — that's any set, or a onesie with slippers. Single onesies under $60 ship at a flat rate shown at checkout.
Will it arrive in time for Halloween?
Order by October 12 to be safe.
Do you ship to Canada?
Yes. Delivery times are similar; duties, if any, are the buyer's responsibility.
The onesie
What is it made of?
Soft coral fleece. Thick, warm, and machine washable.
How do I wash it?
Cold wash, inside out. Tumble low or hang dry. Don't iron the face.
Does it shed?
A little loose fluff on the first wash, like any fleece. After that, no.
Is the comb really free?
Yes. Every onesie ships with a comb for the tuft of hair on its head. It is not necessary. It is included.
Can I mix colors in the Duo Set or Squad Pack?
Yes, any colors and any sizes. Put two or four in the cart and the set price applies automatically.
Returns
What if it doesn't fit?
30 days from delivery to send it back, no forms, no questions. Email hello@monsteronesie.com and we'll sort it.
Wrong size or address on my order?
Email hello@monsteronesie.com as soon as you can. Orders move to fulfilment quickly, so we can't promise a change once it's packed — but if it hasn't shipped yet, we'll fix it. And if it has, the 30-day return still has you covered.