The wool of this shirt is graded ultrafine and it has a noticeably luxurious hand. You can certainly tell this shirt is softer than a 16.5-micron or 17.5-micron merino shirt.
Here’s a guide to fineness grading for wool:
- Fine grade (18.6μ – 20μ)
- Superfine grade (15.6μ – 18.5μ)
- Ultrafine grade (15.5μ and below)