Originally Posted by chogall
But for RTW, they just put loafers on normal lasts.
Some do, some don't! - Edward Green has at least four dedicated lasts, solely for loafers (or 'casuals' as they are called in English shoemaking).
Differences in the last for a loafer:
A loafer last is shorter;
less allowance in front of the toe.Higher instep
to enable you to get easily into the shoe, but not too high to fall easily out of the shoe. This depends in the length of the vamp. 'Low vamps' might not need any increase at all.Tighter top-line
. The top-line should should fit snugly to the foot to avoid gaping.Snug heel
. The back of the heel is more nipped-in as to 'click' into place.
Some bespoke firms will make (and store) a separate loafer last; others will adjust a last temporarily for a particular order and reverse the changes for the next lace-up. (There are stories being told, where the reversal was forgotten and the customer got his next lace-ups made on the previously adapted loafer last. But then, these stories might just be urban myths.)