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.

Grommet lace-up poncho
Plaid legging
Plaid two-piece set
Tie-dye surplice tunic top
Lace colorblock two-piece warm-up set
Chic travel coordinates
Deep V sweatshirt
Everyday yoga pant
Lace wrap legging
Basic leggings
Chic zippered sport coordinates
Scoop-neck sweatshirt
Lattice legging
Nautical colorblock two-piece set
Teardrop sweatshirt
Floral graphic legging
Twist band hipster bikini bottom
Fringe halter bikini
Sweetheart cup bra bikini top
Laser-cut two-piece set
Draped mesh top
Side-tie skirted hipster bikini bottom
Shirred halter tankini top
Vacation halter top
Lace-up legging
New loop terry two-piece set
Off-the-shoulder top
Crochet bikini
Everyday skort
Sports bra
Laser-cut crop legging
Glam plunge maillot one-piece swimsuit
Everyday crop legging
Laser-cut leggings
Inca sundress
Everyday capri pant