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Men’s office dressing in fall — here are 13 pieces that build a full season of business-casual outfits.
My top pick: Thirteen pieces is enough for a full fall of office outfits if they all work with each other, which these do.

1. Navy Blazer

The single most versatile jacket in a men’s wardrobe. Shop navy blazer men on Amazon →
2. Grey Wool Trousers

Mid-grey trousers that pair with almost any top. Shop grey wool trousers men on Amazon →
3. Oxford Shirt

A classic oxford in white or light blue. Shop oxford shirt men on Amazon →
4. Fine-Gauge Merino Sweater

A thin merino knit for layering over shirts. Shop merino sweater men on Amazon →
5. Knit Polo

A textured knit polo for smart-casual days. Shop knit polo men on Amazon →
6. Chinos

Well-fitted chinos in navy, stone, or olive. Shop chinos men slim on Amazon →
7. Quarter-Zip Sweater

A quarter-zip over a collared shirt. Shop quarter zip sweater men on Amazon →
8. Leather Loafers

Penny or bit loafers in brown leather. Shop leather loafers men brown on Amazon →
9. Chelsea Boots

Sleek boots for colder office days. Shop chelsea boots men on Amazon →
10. Leather Belt

A brown leather belt matched to your shoes. Shop leather belt men brown on Amazon →
11. Wool Overcoat

A camel or charcoal overcoat for commuting. Shop wool overcoat men on Amazon →
12. Dark Denim

Clean dark jeans for casual Fridays. Shop dark denim jeans men on Amazon →
13. Simple Watch

A plain leather-strap watch. Shop leather strap watch men on Amazon →
The bottom line
A navy blazer with grey trousers is the backbone of men’s business casual. Merino knits and a quarter-zip cover every temperature in between.