"SPIDER" WAFFLE KNIT THERMAL

Q: How long will my order take to arrive?

After shipment of order: Germany : 1–3 business days EU European countries (Austria, France..): 2–8 business days Non-EU European countries (UK, Switzerland..): 3–9 business day Other (Canada, Hongkong, Egypt...): 8–26 business days Shipping times may vary by destination and local postal services, these times are estimated, not a nguarantee.

Q: Do you ship to my country?

Yes we ship worldwide, with a few exceptions: Countries we do NOT ship to: (This is our store for US: us.seika.one ) South America (all countries) Africa (except Algeria, Egypt, Libya, Morocco, Tunisia) North America (except Canada, Mexico)

Q: How do I find the size that fits me?

You can use the Size Finder above the variant selectors and the size chart to confirm which size should fit you best. :)

Q: Do they keep me warm?

Thermals keep you warm because the fabric holds your body heat while still letting air move through , so you stay warm without feeling sweaty or stuffy .

Q: Is the longsleeve made of polyester?

No — we use 100% pre-shrunk cotton , not polyester. This keeps the fabric soft, breathable, and comfortable , while still keeping you warm. :)

Q: I don’t know what color to choose.

I don’t know what color to choose Choose black if you want a safe, everyday option that blends into any outfit and feels effortless. Choose white if you want a clean, standout look that feels intentional and elevates simple fits. Many customers get two or more because it lets them: Rotate styles for different outfits Always have one ready while the other is airing out Switch looks without changing comfort or fit If you’re unsure, starting with both colors gives you flexibility without compromise.

Q: Can I return the item if I am not satisfied?

Yes. You can return your order within 14 days of shipment. Read our Refund Policy for more details. To start a refund, please email us at seikadotone@gmail.com or use the Contact Form.

Size	Chest	Length	Sleeve Length
S	57.5	65	58
M	59.5	67	59
L	61.5	69	60
XL	63.5	71	61

Need Help? We're Here For You

Our support team usally responds within 72 hours.

Email seikadotone@gmail.com

100% Satisfaction Guaranteed
Not happy? Get a refund within 14 days. We stand behind our products and your peace of mind.

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Frequently Asked Questions

SHIPPING

How long will my order take to arrive?

After shipment of order:

Germany: 1–3 business days
EU European countries (Austria, France..): 2–8 business days
Non-EU European countries (UK, Switzerland..): 3–9 business day
Other (Canada, Hongkong, Egypt...): 8–26 business days

Shipping times may vary by destination and local postal services, these times are estimated, not a nguarantee.

Do you ship to my country?

Yes we ship worldwide, with a few exceptions:

Countries we do NOT ship to:

(This is our store for US: us.seika.one)
South America (all countries)
Africa (except Algeria, Egypt, Libya, Morocco, Tunisia)
North America (except Canada, Mexico)

SIZING

How do I find the size that fits me?

You can use the Size Finder above the variant selectors and the size chart to confirm which size should fit you best. :)

Product Questions

Do they keep me warm?

Thermals keep you warm because the fabric holds your body heat while still letting air move through, so you stay warm without feeling sweaty or stuffy.

Is the longsleeve made of polyester?

No — we use 100% pre-shrunk cotton, not polyester. This keeps the fabric soft, breathable, and comfortable, while still keeping you warm. :)

I don’t know what color to choose.

I don’t know what color to choose

Choose black if you want a safe, everyday option that blends into any outfit and feels effortless.

Choose white if you want a clean, standout look that feels intentional and elevates simple fits.

Many customers get two or more because it lets them:

Rotate styles for different outfits
Always have one ready while the other is airing out
Switch looks without changing comfort or fit

If you’re unsure, starting with both colors gives you flexibility without compromise.

SUPPORT / RETURNS

I have questions and need help!

Of course!

If you have any questions or need help, just reach out ! We’re happy to assist you anytime and will get back to you as quickly as possible.

Click here

Can I return the item if I am not satisfied?

Yes. You can return your order within 14 days of shipment.

Read our Refund Policy for more details.

To start a refund, please email us at seikadotone@gmail.com or use the Contact Form.

"SPIDER" WAFFLE KNIT THERMAL

Built to last. No polyester bullshit.

SEE THE THERMAL IN ACTION:

Need Help? We're Here For You

Frequently Asked Questions