Excellent choice — #6 of 31 Viscose ranks #6 of 31 fabrics for excessive sweating. It is one of the best fabrics for this. Ranked on breathability and moisture handling, penalised for weight. The top pick is Merino.
Viscose measures 70/100 for breathability, 13% moisture regain, 25/100 warmth, at 150 gsm. For excessive sweating, high breathability and strong moisture absorption decide comfort — and its low warmth avoids trapping heat against the skin.