Home › Massachusetts › Boston
Plus Size Stores in Boston, MA
Boston has 4 plus size stores — including 3 independent boutiques, 1 with bridal & formal, and 1 with proven extended sizes (4X+). Listings are ranked by what shoppers say (rating weighted by review count) and show size ranges and live open-now hours, so you can pick a store and go.
Saks Fifth Avenue
3.9 ★★★★☆ 655 reviews
Posh department store chain carrying designer apparel, shoes & accessories, plus home goods & more.
Cuffs & Collars by Antoine Rubini
4.9 ★★★★★ 131 reviews
Men's boutique offering upscale Italian suits, shirts & ties plus a wide selection of cuff links.
Rainbow Shops
3.9 ★★★★☆ 182 reviews
Apparel chain offering fashionable clothing for women, men & kids, as well as shoes & accessories.
Good to know in Boston
One Boston store has a known size range so far — roughly sizes 14–20, shown on its listing. All 4 stores with posted hours are open on Sundays.
For curated racks and an owner who knows the inventory, the boutiques here are Saks Fifth Avenue, Cuffs & Collars by Antoine Rubini and Johnny Was.
For depth past 4X — proven on the store's own site, not promised — Rainbow Shops stocks extended sizes (4X+ / size 26+).
Dress shopping for an event?
This store shows real bridal or formal evidence — from the store's own site or shopper reviews, not a guess. Plus size gowns to actually try on, whether it's a wedding, prom, or mother-of-the-bride.
- Rainbow Shops ★★★★☆ 3.9 (182)