The Softest Wool T-Shirts

In terms of fineness, any wool fiber that has a diameter of 20µ (microns) or less will feel very soft to the touch.

Below 17.5µ the wool starts to feel buttery soft against the skin.

Here’s a guide to fineness grading:

• Fine grade (18.6 – 20μ)
• Superfine grade (15.6 – 18.5μ)
• Ultrafine grade (15.5μ and below)

These are the finest wool T-shirts I’ve found:

Men’s Short Sleeve T-Shirts — Ultrafine Merino

• 100% Merino 12 Micro T-Shirt by Loro Piana – $2150 (!)
• 100% Merino 15.5 Micro Shirt by Loow — two-ply compact spun Italian utlrafine merino — 160 g/m² — $112

Men’s Short Sleeve T-Shirts — Superfine Merino

• 87% Merino 16.5 Micron T-Shirt by Proof — superfine merino from Global Merino, New Zealand — $72
• 87% Merino 16.5 Micron Short Sleeve Shirt by Arcteryx (Veilance) — 100% superfine merino — $150
• 100% Merino 16.5 Micron T-Shirt by Meriwool — superfine merino — 190 g/m² — $55
• 100% Merino 16.5 Micron T-Shirt by Outlier — top capped MacKenzie 17.5 micron merino — 195 g/m² — $120
• 87% Merino 17.5 Micron T-Shirt by Ridge — superfine merino — 145 g/m² — $54
• 100% Merino 17.5 Micron T-Shirt by Minus33 — superfine merino — lightweight jersey knit — 170 g/m² — $64
• 100% Cashmere T-Shirt by Maison Cashmere — Loro Piana wool — $127

Men’s Long Sleeve T-Shirts – Superfine and Ultrafine Merino

• 100% Ultrafine Merino Crew Sweater by Jema — ultrafine 13.5 micron Saxon merino (a wool known as Jemala) — $382
• 100% Merino Long Sleeve Shirt by Minus33 — 17.5 micron merino — 170 g/m² — $69
• 75% Merino Dreamweight Shirt by Outlier — 75% 16.5 micron merino, 25% nylon — 110 g/m² — $120
• 89% Merino Long Sleeve Shirt by Proof — 17.5 micron merino — superfine wool from Global Merino, New Zealand — $98
• Veilance Frame Shirt Long Sleeve Shirt by Arcteryx — 87% superfine merino, 13% nylon — 16.5 micron — $200