After size, the Volas Mattress Topper has one other option: Color, listed as White or Black. Both colours are sold with Twin through California King.
Colour changes how the bed looks. It does not change the listed size, and it does not add a care method. The page does not rank one colour as thicker or cooler.
Choose the colour that suits the bedding you already use, then confirm the size name still matches your mattress.
Select White or Black on the Volas Mattress Topper colour options.