pale greyish blue J. Crew Ludlow suit for years now, and similar iterations are an informed way to look appropriate for the occasion, but more free and easy - pale blues also look on point with cream or white boutonnieres.
It’s also worth considering neutral hues, particularly if your summer wedding is of the more rustic, pastoral variety. An oatmeal suit in a cotton and linen mix (which means it won’t crumple as easily as full linen) can look fitting for a relaxed countryside bash that’s more ‘hay bales and draft ales’ than cocktails at Claridges.
And consider certain finer points of construction too, particularly if your wedding involves, in normal times, a continental sojourn and the searing temperatures that come with that.
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