Wool 101: What Super 80s–250s Actually Means
Mar 13, 2026 · 3 min read
Quick Answer
The "Super" number on a wool label refers to the fineness of the wool fiber — roughly, how thin each individual strand is. Higher numbers (Super 150s, 200s) mean finer, softer fibers, but not necessarily a more durable or better everyday suit. For most business and everyday wear, Super 100s to 130s offer the best balance of softness, durability, and value.
What the number actually measures
The "Super" rating is based on the diameter of the wool fiber — finer fibers earn a higher number. A Super 80s wool has thicker, sturdier fibers; a Super 200s wool has extremely fine, silky fibers. It's a measure of fineness, not overall quality.
Higher isn't always better for everyday wear
Very high Super numbers (180s and above) produce an exceptionally soft, luxurious fabric — but the trade-off is that finer fibers are generally less durable and more prone to wrinkling and wear over time. A suit worn daily to the office is often better served by a slightly lower, sturdier Super number than the highest available.
Where the sweet spot usually is
- Super 80s–100s: durable, excellent for everyday business wear and travel
- Super 110s–130s: a strong balance of softness and durability — the most common recommendation for a primary work suit
- Super 150s and above: luxurious hand-feel, best suited to special-occasion pieces worn less frequently
It's not the only thing that matters
Weave, weight, and finishing all affect how a fabric performs just as much as the Super number. A well-woven Super 100s cloth can outperform a poorly finished Super 150s cloth in both comfort and longevity.
Frequently Asked Questions
Is Super 150s wool better than Super 100s?
Not necessarily "better" — it's softer and finer, but Super 100s is generally more durable for frequent, everyday wear.
What Super number is best for a daily work suit?
Super 100s to 130s tends to offer the best balance of comfort, durability, and value for regular use.
Does a higher Super number mean better quality wool?
Not automatically — it measures fiber fineness, not overall craftsmanship or durability.
Not sure which wool weight is right for you?
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