Sanctuary Base 6 space suit
The crew of Sanctuary Base 6 used a distinct orange design of space suit and helmet.
History
Whilst fighting the Beast on Sanctuary Base 6 in the year 43K2.1, the Tenth Doctor acquired an orange space suit, which he used to explore the depths of the Beast's prison, a deep pit. He left the base with the suit on. (TV: The Impossible Planet, The Satan Pit)
The Doctor wore a similar suit when battling Torajii in the 42nd century. He needed it to temporarily exit the SS Pentallian. (TV: 42)
Doctor kept his Sanctuary Base 6 space suit in the TARDIS he visit to the moon with moon landing stuff and have stargazing with or without telescope to apollo 11 he watched neil put his first step on the moon and put the flag
(PROSE: Blue Moon) He wore it to stroll on the surface of Mars in 2059. The helmet was damaged in the escape from Bowie Base One, and abandoned shortly after. (TV: The Waters of Mars)
The Eleventh Doctor later again wore the orange space suit, having replaced the helmet and removed the Sanctuary Base 6 insignia, when he travelled to a newly-formed Earth. He thought it brought out his eyes, although Clara Oswald noted that it made her eyes hurt. He wore the suit again when he travelled to a lifeless Earth at the end of its life. (TV: Hide)
Time traveller Orson Pink possessed a Sanctuary Base Six orange spacesuit, complete with the SB6 logo. (TV: Listen)
Many centuries later, the Twelfth Doctor, by this time, had acquired two more orange spacesuits which he lent to Clara and Courtney Woods so they could all go for a quick moonwalk. (TV: Kill the Moon)
Priyanka Maratha borrowed this suit from the Doctor and wore it to pilot the Haven. (COMIC: The Swords of Kali)
Clara wore her orange spacesuit when she and the Doctor crossed paths with the Mire, initially being able to use it as proof that she had access to higher technology and making the Mire question continued conquest. (TV: The Girl Who Died)
Later still, the Thirteenth Doctor and her companions would use these suits to respond to a distress call from a space train. In the process Dan Lewis's helmet was shot, shattering the face plate, briefly exposing him the vacuum of space. This brush with death caused him to lose his desire to continue travelling with the Doctor. (TV: The Power of the Doctor)
The helmet of this space suit design appeared in the Remembered TARDIS. Clyde Langer tried it on when he visited that TARDIS. (TV: The Three Doctors [+]Loading...["The Three Doctors (TotT TV story)"])