RARE! You can find the red and black on many sites, but I have never seen the blue. The cobalt blue with purple-blue details is a stunning color. The lining is so soft and the dress is sexy without giving it all away! This gown would be perfect for any formal occasion- weddings, prom, galas, etc. Deets: Side slit on the left One Shoulder strap with grippy silicon that is still soft. Fit: TTS- forgiving and flattering! In excellent condition- like new. Smoke-free home. No holes, rips, tears or stains. Dims laid flat: Armpit to armpit (Bust): 18" ; Waist 16.5" ; Hips: 20.5"" Arm opening at largest area: 9.5" Base opening: 15+" (there's a lot of movement because of the slit) Shoulder sleeve width: 2.75" Top of shoulder to hem length: 63" Slit length 31" Armpit to hem: 55" Zipper length 14.5" Top opening: 17" Send me your best offer on this gorgeous dress!