We were pleased when the Sportful Supergiara jacket arrived at the same time as the Castelli Unlimited Puffy jacket, as they make for a useful comparison.
They’re both gravel-oriented outer layers, best between low single-digit and low double-digit temperatures (or low 30s to low 50s in Fahrenheit), with a base layer underneath. Both use the impressively breathable Polartec Alpha insulation, with different windproof shells on the outside, and different approaches to where the insulation is used on the inside. They’re very much leave-on jackets, whether you’re grinding up hills or facing off icy headwinds (or both at once).
