Cassandra Cain Costume History

With Cassandra Cain making her film debut in Birds of Prey, let's look at the many costumes she has worn in the comics.
Cassandra Cain, daughter of assassins David Cain and Lady Shiva, was raised to be a killer at a very early age. Deprived of language so she would learn to read body moments, David Cain taught Cassandra how to fight and predict her opponents' attacks. When he forced her to kill a man she fled and lived on the streets until she was found by Batman and Oracle (Barbara Gordon, the former Batgirl). Offering her a chance to be a hero, they gave her the black Batgirl costume formerly worn by the Huntress. As she grew into her role as the new Batgirl, she found that her full face mask and black costume made people scared of her, so she tried to fight crime in Oracle's old Batgirl costume. However she soon found that she was far more effective and comfortable in her all black costume. When Batman was thought to be dead, Cassandra passed the Batgirl mantle to her friend Stephanie Brown and moved to Hong Kong to find herself. While there, she fought crime in a black bodysuit with silver armored accents, a lower face mask, and a cape-like scarf. When she was convinced to come home she created a new persona, the Black Bat. As Black Bat she wore a modified version of her original Batgirl costume, making the bat symbol sold gold and replacing her full facemask with a sleek domino mask.
After the events of New 52, Cassandra was the daughter of David Cain, known as Orphan. He raised Cassandra to be a killer to please the mysterious Mother. Mother deemed Cassandra a failure and David Cain died freeing his daughter. Cassandra choose the codename Orphan to honor her father and was taken in by Batman. At first her Orphan costume was a black and gold bodysuit with a utility belt, and she hid her identity with a bloody bat symbol "mask" painted over her eyes. After she officially joined Batman's team she donned a black full face mask almost identical to the one she wore as Batgirl and replaced her fingerless gloves with full gloves. In 'Harley Quinnand the Birds of Prey'' Cassandra wears a sleeker version of her Ophan suit with yellow bat symbol along with a black lower face mask and short yellow gloves.
In a possible future, Cassandra was Batwoman, wearing a stylized version of her Batgirl costume, with armored gauntlets, gold mask lenses, and huge yellow bat emblem.
In a different future, Cassandra is part of a team of Batgirls, wearing an armored bodysuit with a gold bat emblem and bat-eared cowl.

Huntress Costume History

With Birds of Prey making its film debut, lets look at the many costumes worn by one of the Bird of Prey's members, the Huntress.
Helena Wayne was the daughter of Batman and Catwoman from Earth-2. She followed in her parents' footsteps as a crimefighter and became the Huntress after her mother was killed. Her costume was meant to pay homage to both Batman (with its blue scalloped caped and gold ultilty belt) and Catwoman (with its purple color scheme and cat-like mask).
After the events of Infinite Crisis, Earth-2 was erased and a new hero became Huntress. Helena Bertinelli lost her family to a mafia hit as a little child and swore vengeance. As an adult she was inspired by Batman and decided to hunt down every member of the mob as the Huntress. Her first costume was very similar to the one worn by Helena Wayne, only more armored and with a darker color scheme. As she grew into her identity, Huntress slightly altered her costume, brightening the color and giving her leotard an x-like design. Huntress would later change the color scheme of this from violet-and-blue to black-and-purple and replace the leotard with a protective bodysuit.
When Gotham was separated from the mainland and quarantined, Helena took advantage of the confusion to create a new identity for herself. Donning a black bodysuit yellow outline of a bat symbol, a cape, and  a bat-eared cowl with a full face mask, Helena took the mantle of Batgirl (formerly held by Barbara Gordon until she was paralyzed from the waist down by the Joker). Batman allowed her to use the costume until Helena disobeyed his direct orders to stop the villainous Two-Face, and he stripped her of her Batgirl costume and he and Barbara gave the identity to  Cassandra Cain.
Helena became a reluctant member of the superteam, the Birds of Prey and returned to her Huntress persona, this time with a navy blue-and-white leotard with a purple mask and cape as well as armored purple gloves and boots.
With the events of New 52, Earth-2 was reborn. Once again Helena Wayne was the daughter of her Earth's Batman and Catwoman, and fought crime as Robin (wearing a red-and-green armored bodysuit with a yellow cape ad red mask). During an alien invasion, Helena accidentally fell through a dimension portal and landed on Earth Prime. She assumed the alias of Helena Bertinelli and fought crime on her new Earth as Huntress, wearing a black-and white bodysuit with purple accessories (that seemed to be a combination of the last two Huntress costumes). Eventually she was able to return to Earth-2 and redesigned her Huntress costume, making it sleeker and replacing the purple on her suit with white.
The real Helena Bertinelli on Earth Prime became Huntress after leaving the espionage agency Spyral. Her costume was a simplified version of her Earth-2 counterpart's black-and-white unfirorm, adding a hood and replacing the cape with a sleeveless trenchcoat.

Black Canary Costume History

With Birds of Prey making its film debut, lets look at the many costumes worn by one of the Bird of Prey's members, the Black Canary. The first Black Canary was Dinah Drake, the love interest of police officer Larry Lance. Relying on her acrobatic and martial arts prowess, Dinah Drake wore a black leotard over fishnet stockings along with a black bomber jacket and black boots. She hid her identity with a simple black mask. Dinah Drake and Larry would eventually marry and have a child, Dinah Lance.
As Dinah Lance grew up she discovered she had a metahuman power to create sonic blasts using only her voice. Calling her power the "Canary Cry", Dinah wanted to carry on the Black Canary tradition. Dinah wore a costume similar to her mother's costume, only with a blue jacket and without the mask. As she became a more accomplished hero, Dinah Lance decided to create her own version of the Black Canary costume, a blue-and black bodysuit with a bird-like design and white boots. When a drug dealer damaged her throat, Dinah Lance lost her sonic scream and quit being the Black Canary. When she finally decided to become a hero again, she created an armored version of her original costume with blue and gold accents, a canary utility belt, and no fishnets. She replaced her lost powers with golden discs capable of generating ear-splitting soundwaves. As she joined the the superhero team, the Birds of Prey, she added a jacket and armored leggings to her costume. When she regained her Canary Cry she created a sleek black and gold version of her first costume. Later she would add a black trenchcoat to the costume.

With the timeline altered by the events of new 52, Dinah Drake was once again Black Canary. As a member of Team 7 she wore a black and gold combat suit with blue fishnet patterns on the legs. Dinah was unknowingly injected with metagenes while on a mission and developed a sonic scream. She would become the Black Canary, wearing high-tech formfitting black-and-gold body armor over blue fishnet leggings. Later she would abandon her armored uniform for a punk rock look.  She wore a blue-and-black bodice with a black leather motorcycle jacket, cutoff shorts, fishnet stockings, and combat boots. In the altered reality called Gothopia, Dinah Drake was the sonic-singing Warbler, in a white-and-sky blue bodysuit.