FAQ

Frequently asked questions

Sizing, shipping, care and returns.

Questions

Sizing, care and delivery

Straight answers from the Core Grid Lab Stream desk before you order.

What sizes do you offer?

XS–3L with clear guides; our fit team replies within one business day.

Good for sensitive skin?

Yes — OEKO-TEX cotton blends and tag-free bonded seams.

How should I wash?

Cold wash in a bag; hang dry. Skip fabric softener.

Exchanges?

Unworn items with liners intact within 14 days.

Shipping time?

1–3 business days across Japan; free over ¥5,000.

Discreet packaging?

Always plain and unbranded.

Plain packaging, clear sizing, and delivery across Local from Choshi.