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
Ruffle off-the-shoulder bikini
Beaded turtleneck top
Embellished jogger pant
Embroidered beaded two-piece set
Sexy plunge one-piece swimsuit
Ruffle off-the-shoulder one-piece swimsuit
Long sleeve basic tee
Pearl two-piece set
Eat, drink, be merry tee
Tropical crochet one-piece swimsuit
Embroidered tassel dress
Pom-pom handkerchief tankini
Embellished cold-shoulder sweatshirt
Peace on earth sweatshirt
Quilted faux fur two-piece set
Multicolored embroidered cover-up
Scoop-neck sweatshirt
Nautical colorblock two-piece set
Lattice legging
Fringe halter bikini
Sweetheart cup bra bikini top
Twist band hipster bikini bottom
Laser-cut two-piece set
Floral graphic legging
Side-tie skirted hipster bikini bottom