![It came from the deep… to a fancy dress party – IWM's Mk 9 Submarine Escape and Immersion Equipment (SEIE) suit – volunteer london blog It came from the deep… to a fancy dress party – IWM's Mk 9 Submarine Escape and Immersion Equipment (SEIE) suit – volunteer london blog](https://iwmvolunteerlondon.files.wordpress.com/2018/11/large_c2a9-iwm-equ-463_mk_9_escape_suita.jpg?w=620)
It came from the deep… to a fancy dress party – IWM's Mk 9 Submarine Escape and Immersion Equipment (SEIE) suit – volunteer london blog
![Britain's Prince Harry tries wearing an immersion suit on the island of Spitsbergen, between the Norwegian mainland and the North Pole March 30, 2011. Prince Harry has joined the Walking with the Britain's Prince Harry tries wearing an immersion suit on the island of Spitsbergen, between the Norwegian mainland and the North Pole March 30, 2011. Prince Harry has joined the Walking with the](https://c8.alamy.com/comp/2CXAG7Y/britains-prince-harry-tries-wearing-an-immersion-suit-on-the-island-of-spitsbergen-between-the-norwegian-mainland-and-the-north-pole-march-30-2011-prince-harry-has-joined-the-walking-with-the-wounded-expedition-team-on-spitsbergen-before-they-set-off-to-walk-to-the-north-pole-reutersdavid-cheskinpool-britain-tags-society-royals-2CXAG7Y.jpg)
Britain's Prince Harry tries wearing an immersion suit on the island of Spitsbergen, between the Norwegian mainland and the North Pole March 30, 2011. Prince Harry has joined the Walking with the
![File:US Navy 080617-N-2218M-003 Twenty crewmembers of the fast-attack submarine USS Charlotte (SSN 766) practice escaping the submarine while wearing submarine escape immersion equipment (SEIE) suits.jpg - Wikimedia Commons File:US Navy 080617-N-2218M-003 Twenty crewmembers of the fast-attack submarine USS Charlotte (SSN 766) practice escaping the submarine while wearing submarine escape immersion equipment (SEIE) suits.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/0/09/US_Navy_080617-N-2218M-003_Twenty_crewmembers_of_the_fast-attack_submarine_USS_Charlotte_%28SSN_766%29_practice_escaping_the_submarine_while_wearing_submarine_escape_immersion_equipment_%28SEIE%29_suits.jpg)