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*Sizes 90 & 150 is on backorder, ETA early to mid December. Orders with in-stock items will ship together once it arrives. To receive in-stock items earlier, please contact us.




Peekaboo, I see you!
This adorable animal-themed tee brings a splash of fun with its 3D puffy fins and a playful tail that wiggles along—just like a cheeky seal ready for a game of peekaboo! This interactive design lets your little ones explore, play, and become part of their own little animal pack.
Crafted from premium milky cotton, it’s cooling, ultra-soft, breathable, and perfect for sunny adventures.
Available in sizes 18 months to 12 years old, with a matching romper for babies—perfect for twinning, playdates, and sibling bonding!
| Size reference: | |||
| Size | Length | Chest | Waist |
| 90 | 38cm | 32.5cm | 32.5cm |
| 100 | 41cm | 34cm | 34cm |
| 110 | 44cm | 35.5cm | 35.5cm |
| 120 | 47cm | 37cm | 37cm |
| 130 | 50cm | 38.5cm | 38.5cm |
| 140 | 53cm | 41.5cm | 41.5cm |
| 150 | 56cm | 44.5cm | 44.5cm |
| *All dimensions are measured lying flat. | |||
Size Guide
| mimi mono Size | Age | Height (cm) | Weight (kg) | EUR Size | US Size |
| 60 | 0-6 months | 50-60 | 4-7 | Newborn–3M | Newborn–3M |
| 70 | 6-12 months | 60-70 | 7-9 | 3-6M | 3-6M |
| 80 | 12-18 months | 70-80 | 9-11 | 6-12M | 6-12M |
| 90 | 18-24 months | 80-90 | 11-13 | 12-18M | 12-18M |
| 100 | 2-3 years | 90-100 | 13-15 | 2-3Y | 2T-3T |
| 110 | 4-5 years | 100-110 | 15-18 | 4-5Y | 4T-5T |
| 120 | 6-7 years | 110-120 | 18-20 | 6-7Y | 6-7 |
| 130 | 7-8 years | 120-130 | 20-25 | 7-8Y | 7-8 |
| 140 | 9-10 years | 130-140 | 25-35 | 9-10Y | 10 |
| 150 | 10-14 years | 140-150 | 35-45 | 11-13Y | 12-14 |
| 160 | 14 years - Adult (Unisex) | 150-160 | 45-55 | Teen/XS | US 0-2 |
| S | Adult (Unisex) | - | - | EUR 32-34 | US 4-6 |
| M | Adult (Unisex) | - | - | EUR 36-38 | US 8-10 |
| L | Adult (Unisex) | - | - | EUR 40-42 | US 10-12 |
Shipping Rates
[IMPORTANT NOTE: All orders are shipped from either Hong Kong or Singapore. Import taxes and customs fees are not included in the final payment for all orders outside of Hong Kong and Singapore.]
*For members and non-members, import taxes and customs fees are excluded; the delivery service company will contact you for these payments separately.
*Orders under ¥10,000 are tax-free. For orders over ¥10,000, a 10% standard import tax will apply based on your total order amount.
Shipping rates within Japan
Free for mimi mono members for a limited time only! Regular shipping fees will be applied per order for local non-members. Join membership for free here.
Do you ship internationally?
Yes. Shipping costs are auto-calculated by weight and shown at checkout.
When will my purchase ship?
In-stock items typically ship out within 3-5 business days after the order is placed. Pre-orders ship once they arrive; check each pre-order product page for estimated arrival dates.
How long will my parcel take to arrive?
Delivery duration is between 3-7 business days, depending on your location.
How can I track my order?
You’ll get an email with tracking information as soon as your order ships.
Check out our exchange policy here.
Exchange & Returns
We accept exchanges for unworn, unwashed items within 14 days upon receiving your parcel. This applies to regular-priced items only. Customers will be liable for shipping and handling costs unless the exchange is due to manufacturing defects. Sale items, discount code orders, and accessories are non-exchangeable.
How do I request an exchange?
Contact us at business@mimimono.com for assistance.
Do you accept refunds?
We do not accept refunds due to hygiene reasons, unless it is on a case by case basis.
We ship worldwide. Check our shipping rates here.
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