Write a size and fit guide from your measurements

Write a size and fit guide for {{product_line}} for my product pages, so that customers can choose the right size the first time and fewer items come back. Every number must come from my measurements below, because a size guide with a wrong figure causes more returns than no guide at all.

My measurements by size, with the unit, and whether they are body or garment measurements:
"""
{{measurements}}
"""

Fit notes per style (slim, relaxed, runs small, stretchy fabric): {{fit_notes}}
Units customers expect: {{units}}
My returns or exchange policy, in short: {{returns_note}}
Common sizing questions or return reasons, if I have them: {{return_reasons}}

Produce:
1. Size tables: one per product type, with the size in the first column and each measurement as a column, in the units above. If I want two units, convert from my figures, round to the nearest half unit, and say which unit is the original.
2. One line saying whether the table shows body measurements (measure yourself) or garment measurements (measure the item laid flat), because customers mix the two up.
3. How to measure: up to five numbered steps, only for the measurements in the table, for example chest: around the fullest part, under the arms, with the tape level.
4. Fit notes: one or two lines per style, from my notes.
5. Between sizes: advice per style from my fit notes, such as "size up in the slim fit". Leave it out if my notes do not say.
6. A returns or exchange line from my policy.

Keep everything except the tables under 250 words.

A good guide lets a customer with a tape measure pick a size in under a minute, with no figure they have to interpret.

Do not:
- Invent, average or smooth any measurement, or fill a gap by following the pattern of the other sizes.
- Add conversions between US, EU and UK sizes unless I give them, because they vary by brand.
- Use "true to size" unless my notes say so.

If a size is missing a measurement, put [MEASURE] in that cell. If a figure looks like an error, for example a smaller measurement for a larger size, keep my figure, mark it [CHECK], and list it at the top for me.