A compromise — #19 of 31 Merino ranks #19 of 31 fabrics for quick drying. It is a middling fabric for this. Ranked on low moisture regain, low weight, and packability — the inverse of absorbency. The top pick is Polypropylene.
Merino measures 80/100 for breathability, 15% moisture regain, 55/100 warmth, at 180 gsm. Fast drying favours low moisture regain: at 15% Merino holds water and dries slowly, and 180 gsm keeps it light.