Sleeve Replacement

Sleeve Replacement technology is an older technology developed on Earth. Because of the powers of gene-modification, humans are able to inhabit a wide variety of different sleeves, from the sleeves of animals to specially-modified humanoid sleeves. Using a cortical stack and neural-web-emulation, humans are able to save their brains as data in a computer. Using nanofabrication technology, humans are able to manufacture a new brain with exactly the same structure as the brain of an existing human.
Using the combination of all of these technologies, a human can be brought back from death in any body of their choice any number of times, as long as their brain-emulation data can be recovered.
Human characters are able to use any of the sleeves listed below. while synthetic characters are able to use only synthetic sleeves. Anansi have not yet adopted sleeve replacement technology.
Ten of the most popular sleeves are detailed below:

• Splicer sleeves are the basic human sleeve, used by the masses. Designed for long, healthy life, attractiveness, and general quality of life. Those sleeved in a splicer morph have an asset on all tasks involving resisting poison or disease, pleasant interaction with humans, and raw physical endurance.
• Seafolk sleeves are designed with amphibious living in mind. They are frequently employed by those whose professions involve working in or around the water, such as fishermen and traders. Their eyes can see with black-and-white detail in complete darkness, and they possess sonar that's usable while underwater.
• Octomorph sleeves are nearly identical to the octopi of old. They are used by the rarer type of sailor or researcher that would give up their human form for additional limbs. They have eight limbs, each one capable of independent action. Their skin can change color, granting them camouflage, and their eye placement grants them all-around vision. Those sleeved in an octomorph have an asset on all tasks involving perception or stealth.
• Neo-Avian sleeves resemble overlarge ravens, approximately the size of a medium-size dog. They're used by military scouts, explorers, and sentries. Neo-avians lack opposable thumbs, and so cannot use handheld items. However, they can also fly at approximately 30 mph.
• Bruiser sleeves are designed with size and strength in mind. Most frequently they're used for entertainment, in fighting rings, although criminal gangs also use them to pack on additional muscle. Those sleeved in a bruiser morph have an asset on all tasks involving lifting, breaking, or moving inanimate objects, and on unarmed attacks.
• Crasher sleeves are designed for survival in harsh environments. They're used mainly by gatecrashing explorers. Crasher morphs can survive for ten minutes without oxygen, and those sleeved in one have an asset on all tasks involving resisting cold, heat, poison, and high gravity. Crasher morphs gain +1 Armor.
• Daitya sleeves are used by dockworkers and construction workers, generally while at work. A daitya resembles a large humanoid piece of construction equipment. Those sleeved in a daitya have two assets on all tasks involving lifting, breaking, or moving inanimate objects, and as synthetics do not have to breathe, eat or sleep. Synthetics have to charge.
• Fury sleeves are used primarily for combat. Fury morphs are reserved for the Protectors or Grimms, and are taken out generally only when necessary. The fury's emotional regulation is edited for ferocity and their senses and reflexes are enhanced. Those sleeved in a fury morph have an asset on all tasks involving attacks or defense.
• Infomorphs are data-only sleeves. As such, they have no physical form. Infomorphs can only travel to places where the Internet exists, although travel for them is instantaneous. Infomorphs can be targeted by Intellect-based attacks done by hackers, but have two assets on all tasks involving networked computer usage.
• Omni sleeves were developed for sex workers, but have grown to be used for a larger proportion of people seeking to give their children a genderfluid childhood. The omni morph can change their sex at will to male, female, hermaphrodite, intersex, or neuter. Those sleeved in an omni morph have two assets on all tasks involving seduction.

These sleeves are less common, but still available for anyone who has access to sleeve replacement technology:

• Ruster sleeves were designed on Mars, for residents partway through the terraforming efforts. They were designed to safely breathe carbon-dioxide-dominant atmospheres, and have significantly improved toxin filtration. Ruster sleeves can breathe poisonous atmospheres -- as long as those atmospheres contain oxygen -- and their insulated skin allows them to find comfort in environments with much lower temperatures than splicers.
• Biocore sleeves are synthetic, but contain a nutrient vat in the head that contains a human brain. The biocore looks weird, but has many advantages. The biocore has all of the advantages of a synthetic sleeve -- it doesn't need to breathe, eat, or sleep. However, it's also not vulnerable to outside control through hacking due to its biological brain. As a synthetic sleeve, biocores need to charge.
• Bouncer morphs were designed by long-term space residents. Enhanced with cetacean DNA for 3-d navigation, bouncers also have feet that are just as functional as hands. Tasks to run are impaired, but those sleeved in a bouncer have an asset on all tasks involving zero-gee movement and climbing.
• Digger sleeves are popular with xenoarchaeology teams. Diggers have huge hands that retain the dexterity of smaller sleeves and stout bodies. Diggers are designed with spadelike nails and enhanced senses. The Digger can dig through soil quickly and can see in low-light conditions. It can survive in low-oxygen environments for up to 30 minutes.
• Android sleeves were designed originally for humanoid servant robots used on Earth, but have expanded to use by synthetics and humans alike. Android sleeves do not have to breathe, eat, or sleep, and have an asset on all tasks involving physical strength or speed (except attacks and defense). The android needs to be charged at a power source once each day.
• Hazer sleeves were designed on Titan for the rare emergency situation when habitat containment breaches would occur. Hazers have thick layers of fat, shaped around strong limbs that retain agile movement. The Hazer is capable of surviving on Titan's surface for short periods of time, and has an asset on all tasks involving cold or pressure resistance.
• Mentons are, in short, designed to have big brains. Mentons have improved mental abilities, processing, memory, and cognitive powers. The wearer of a menton has an asset on all tasks involving memory, study, and learning.
• Nautiloids are a hybrid of short-range spacecraft and submersible capable of holding up to six passengers and their gear. The sleeve is shaped like a van-sized nautilus, with crew space in the head and shell. A cluster of tentacular limbs mounted under the observation ports in the head provide both fine and brute force manipulation. Originally created for comet and asteroid mining, the design also proved useful for oceanic exploration by gatecrashing teams and Nordic Froggers. A nautiloid’s life support system can support its occupants for up to three months before replenishing—indefinitely if it has a source of hydrogen and oxygen.
• The Fenrir sleeve is little more than a tank. With six machine legs and a stout central body, the Fenrir can be mounted with two heavy weapons of different types. The wearer of a Fenrir becomes practiced with heavy weapons, and also gains +3 Armor. Fenrirs are deployed into intense combat situations by armies and Protectors.

Several popular synthetic sleeve designs can be found below. Like all synthetics, these sleeve designs do not have to breathe, eat, or sleep, and require charging on a daily basis:

• Cetus sleeves were designed for deep-sea exploration, and are commonly used by nonsentient robotic assistants as well as the marine biologists themselves doing the research. Cetus sleeves take the form of a cylinder surrounded by eight limbs and two turbine propulsion systems. They can only maneuver in water, but can operate in high-pressure and low-temperature situations. 
• Cloud Skimmer sleeves were designed for close-up observation of Jupiter and Saturn. With an internal rocket, the cloud skimmer is able to get from orbit to a position high in the atmosphere of a gas giant to perform scientific analysis and then get back. The cloud skimmer is about four meters across and is composed of a number of balloons suspended between maneuvering and sensor systems. The cloud skimmer is useful in high-pressure atmospheres and the vacuum of outer space. 
• Dragonfly sleeves are one meter long and possess advanced wings capable of silent flight. They can move in any direction without making any noise at all. The user of a dragonfly has an asset on all tasks involving sneaking and can fly at 60 mph. 
• Galatea sleeves were designed on Luna with the purpose of making synthetic sleeves popular and cool. Their sleek, beautiful design was meant to fit in to high-society social events. The user of a galatea sleeve has an asset on all tasks involving pleasant social interaction. 
• Savant sleeves were designed with the most advanced computer systems that can be packed into a human-sized sleeve. The savant pays no mind to maintaining a human appearance, with a featureless cylindrical head and hydraulic ankles and feet. The user of a savant sleeve has an asset on all tasks involving memory, study, and learning.
• Swarmanoid sleeves are an experiment in the ability of a single ego to control many bodies at once. They take the form of tens or hundreds of thousands of individual miniature robots. The user of a swarmanoid is able to fit through narrow openings to gain access to locations. The swarmanoid is immune to all attacks that do not target an area, but is also unable to make Might-based actions. 

Utility

Sleeve replacement technology is used primarily for two things:

• Morphological Freedom: When you can disconnect from your body and reinhabit a new one, you have access to any body that you choose. Those who make use of sleeve replacement technology often inhabit the body which fits what they see as themselves the most. 
• Reincarnation: A dead human can be re-instantiated in a new body if their stack or backups are recovered. In this way, a human can remain alive until they feel their life is over, rather than their life ending due to chance. 

Access & Availability

Every human has access to sleeve replacement technology if desired. It is completely voluntary to have a cortical stack installed, and most have the procedure done. Replacement bodies are so inexpensive that access to reincarnation is universal.