This variant cover is one of a set (limited to 250 sets) of six that were originally sold together:
Costume Change Cover A (Lingerie) Christian Zanier Variant (Boundless, 2015 series) #1,
Costume Change Cover B (Bikini) Christian Zanier Variant (Boundless, 2015 series) #1,
Costume Change Cover C (Packing Heat) Christian Zanier Variant (Boundless, 2015 series) #1,
Costume Change Cover D (Sexy Nurse) Christian Zanier Variant (Boundless, 2015 series) #1,
Costume Change Cover Topless - Christian Zanier Variant (Boundless, 2015 series) #1 and
Costume Change Cover Nude - Christian Zanier Variant (Boundless, 2015 series) #1.