In Pompeii , depictions of Venus wearing a bikini were discovered in the Casa della Venere,    in the tablinum of the House of Julia Felix ,  and in an atrium garden of Via Dell'Abbondanza. The bathing gown of the 18th century was a loose ankle-length full-sleeve chemise -type gown made of wool or flannel that retained coverage and modesty. Inspired by the introduction of females into Olympic swimming he designed a close-fitting costume with shorts for the bottom and short sleeves for the top. Rayon was used in the s in the manufacture of tight-fitting swimsuits,  but its durability, especially when wet, proved problematic. With the development of new clothing materials, particularly latex and nylon , swimsuits gradually began hugging the body through the s, with shoulder straps that could be lowered for tanning.