The soft cups are made in 100% cotton. This is a high quality close weave cotton, very soft and hardwearing. The undercups are made from two layers of fabric. This gives additional support for larger sizes. The sides are made in cotton elastane. This has restricted stretch to give additional control. To improve the comfort of the shoulder straps, the front part is padded. The remainder is made from restricted stretch strapping to ensure that bra gives full support. The underband is soft elastic for additional comfort. Four back eyes give ample adjustment for size changes. Bra extenders will extend the length of this bra.