Great jacket, very light and soft jacket. Repels water and block the wind. You can wear it when the temperature is from 15 to 23 C with a T-shirt beneath it when not active.
Although it may be not as soft as Venta AR and but it is softer than Gamma MX. All of them are very soft though. The velcro cuff of Simga LT to me is better than the elastic cuff in Venta AR.
It is softer and lighter than the Sigma SV/AR and Simga AR. However, it tends to have creases after packing (same happens to Gamma MX). In contrast, Sigma AR does not have creases after packing. In terms of ventilation, it as good as or sligtly better than Gamma MX; whereas, Gamma MX breathes slightly better than Gamma SV/AR and sigma AR.