Smooth Is Elomi’S Securest Strapless Shape Yet, Featuring Innovative Features Such As ‘Slide And Lock’ Hooks And Flexi-Bones.Features:Newly Developed Foam Moulded Cup With Matte Simplex Overlay, Gives Firm Supportcup Shape Has Been Specially Developed To Give A Forward And Rounded Cup Shape, Without Digging In At The Necklinecups Have A Sweetheart Neckline, Dipping At The Centre Front For A Flattering Shaperemovable Mutliway Straps Feature A Specially Developed “Slide And Lock’’ Hook, Which Keep Straps Securely In Placenew Flexi-Bones At The Back Support Without Digging In, Flipping Or Rollingelastic At The Top Of Back And Underband Feature Patented Stay4Sure Silicone Coating, Which Helps Prevent Slipping, And Is Kind To The Skinthe Cup Has Two Strap Connecting Locations To Allow A Choice Of Wearing Positionthree Or Four Rows Of Wider Spaced Hook And Eye, Dependant On Sizecentre Bow Detailinformation:37% Nylon/Polyamide25% Elastane38% Polyester