Kalon nylon blend comfort bralette. A great demi cut for wearing with lower cut tops. The cups form a sort of v neck shape. The pads are removable. No underwire The bras are circular knitted (so they don't have side seams) which adds to the comfort of the bra. Straps can be worn standard or cross back. The straps are 3/8 inch side for size S/M -- whereas the M/L size has thicker 1/2 inch straps. The M/L size has a longer length to it than the S/M size. For example the back closure on the S/M size has 2 hook & eye closure measureing 1 inch height (at back) -- while the M/L hook and eye has 3 hooks and measures 1.75 inches tall at the back closure. We made this bralette in mind for both smaller busts and medium sized (C & D cup) busts. So the m/l size will be wider, have more cup coverage, and thicker straps. While the S/M size will be best for A/B cups. Please see the sizing notes below and feel free to let us know which sizes work best for you. <br/><br/>Sizing Guide: <br/><br/> S/M: 34A, 34B, 32C, 36A<br/><br/> M/L: 34C, 34D, 36C, 32DD, 36D <br/><br/>Fabric Contents: <br/><br/>Solids: 92% Nylon 8% Spandex <br/><br/> Heather: 48% Nylon 44% Polyester, 8% Spandex <br/><br/> Tri-Blend (Space Dye-Bright Crazy Color Ones) 57% Polyester 35% Nylon 8% Spandex