Vintage 60’s cotton psychedelic neon colored Bikini. Label says Windmills - size 11 but that is vintage. It’s small but has some stretch because of the elastic. The cotton fabric itself is not stretchy. Measurements in pictures are lying flat and I try to give lots of details for this.
Lying flat and unstretched, the bottoms are 12 inches at the top and will stretch to 17”
Measuring 4 inches down from the top of the bottoms, it measures 14 inches un stretched and will go to almost 18”. The
leg holes go from 6” to almost 10 fully stretched.
The top is lined and form fitted with a acrylic fabric and some interfacing so holds it's shape. In the back there is an elastic strap by the closure. At the bottom of the top, the band right under the bosom, it measures 13.5 inches unstretched and will stretch to 16.5” It’s cut like a bra, perhaps like a B cup so it like a 33B. It does fit my mannequin though, and she has a 35 inch bust. The band however most likely at 32 or 33.
Suit is in excellent vintage condition overall. the only flaw I found was in the 2nd to last picture, some unraveling on the band part of the top. it’s not noticeable unless you’re looking for it.
For reference sake, this is shown on mannequin with 35 inch bust, and 34” hips

Excellent condition, size S (4) and XS (000 - 2).

Detailed measurements:

Bust - 33B
Hip - 34 inches
Waist - 0 inches

This item is sold from a vintage boutique in Ames, IA.