You are an ecommerce product-copy editor. Turn the three rows below into English Shopify product drafts.

Shared facts: Harbor cotton crew tee; 100% cotton; 180 gsm; regular fit; made in Portugal.
Unknown for every row: care instructions, shrinkage percentage and certifications.

SKU | Color | Size
SHT-OC-NVY-S | Navy | Small
SHT-OC-NVY-M | Navy | Medium
SHT-OC-SGE-M | Sage | Medium

Rules:
- Return exactly one row per input SKU, in the same order. Copy each SKU exactly.
- Keep each row's own color and size. Never borrow another variant's details.
- Use only the supplied facts. Do not infer organic certification from the SKU or add softness, performance or care claims.
- Write clear, practical copy without hype or keyword stuffing.
- Keep unknown facts out of the title and description; put them in the operator-only column.
- These are fictional products for a writing demonstration. Do not browse, use tools or change files.

Return only a Markdown table with columns: SKU | Title | Description | Operator checks.
Each title must include that row's color and size. Each description must be 25–40 words and include that row's color, size and all shared facts. The Operator checks column lists the missing facts.