Excellent choice — #4 of 31 Camel Hair ranks #4 of 31 fabrics for warmth without weight. It is one of the best fabrics for this. Ranked on warmth relative to weight, with a packability bonus. The top pick is Cashmere.
Camel Hair measures 52/100 for breathability, 14% moisture regain, 88/100 warmth, at 260 gsm. Warmth-to-weight is the metric: 88/100 warmth at 260 gsm is an excellent ratio for packable insulation.