4-pack Cami M/L Bras by Kalon. Solid color bras are 92% Nylon 8% Spandex. "Space Dye" or multi-color bras are 65% Polyester 27% Nylon 8% Spandex. Heather colors are: 65% Polyester, 27% Nylon, 8% Spandex. There is Removable Padding. Straps are Not removable: No more losing straps in the wash! Straps are wider and more supportive than the S/M original style. Strap width is 1/2 inch. M/L size fits Large top women best. Model is Wearing M/L; Model measurements: Bust: 36.5 Inches Bra Size 32E. While these are m/l sized bras - they are not 'one size fits all'. These are for the ladies with medium chests (C/D cups, Bands 36-38) Sometimes larger cups/bands can wear them too - but the amount of support they offer is decreased. The model is rocking a 32E -- she wouldn't wear them on a jog - but liked them for an everyday casual bra. Otherwise these are a great layering bra or everyday bra - but if you're looking for super support (like a sports bra) these probably aren't the greatest fit unless you're doing light aerobics (like walking or light yoga). Please wash before wearing and use cold water to extend the life of the bra, use a low heat dryer setting or hang wash for longer life. Remove pads to prevent damage or deforming in washer/dryer.