Canali Siena Stripe Wool Sport Coat‎

Canali brand Size 56 Italian (converts to 46 US) measures approximately 22.5 inches pit to pit = 45 inch chest My husband thinks these are size 38 US but I’m not sure what the 38 on the tag is for. Since I’m confused about the sizing please review measurements carefully. Siena style Grey color with a subtle black pinstripe Wool Sport Coat The Siena blazer is designed in a comfortable fit with classic lines across the shoulders, hips, chest and pelvis. 1 cm padded shoulders. Single-breasted jacket with two buttons Slash pockets with flap and slash breast pocket Notched lapels 100% wool Dry clean Made in Italy Model is 6’ tall 200lbs Canali Siena Stripe Wool Sport Coat