Be effortlessly sexy this Fall & Winter in women's swimwear and activewear from Boston Proper. Boston Proper has women's swimwear from sexy to solution like bikinis, tankinis, one-pieces and separates plus caftans and cover-ups you won't find anywhere else.

Sports bra
Lattice legging
Hooded two-piece set
Nautical colorblock two-piece set
Off-the-shoulder top
Chic zippered sport coordinates
Copacabana legging
Fit-and-flare jacket
Chic travel coordinates
Laser-cut leggings
Copacabana macrame tank top
Basic leggings
Everyday yoga pant
Strappy long-sleeve top
Fringe halter bikini
Side-tie skirted hipster bikini bottom
V-neck hooded tunic top
Strappy back detail tunic top
Lace colorblock two-piece warm-up set
Twist band hipster bikini bottom
Scoop-neck sweatshirt
Sweetheart cup bra bikini top
Shirred halter tankini top
Everyday skort
Everyday bermuda short
Tie-dye surplice tunic top
Chain print one-shoulder one-piece swimsuit
Crochet bikini
Monarch legging
Cutout cold-shoulder sweatshirt
Blouson maillot one-piece swimsuit
Crested chic zippered two-piece warm-up set
High neck mesh maillot one-piece swimsuit
High waist legging
Front lace-up sweatshirt
Gold chain layered tankini