Both pretty and functional. Need we say more?Twin Underwire Bra. Larger cups and sizes with an additional, reinforced bust support. Doubled underwire, increasing strength with larger sizes. Wider comfort straps for larger sizes. Extremely flat strap adjusters. Back adjustable straps. Elastic back with a 2-position fastener. Made of breathable microfibre fabric. 70% Nylon/ 30% Elastane.