The Proprioceptive Lattice Sleeve is a form-fitted exoneural garment woven from conductive elastomeric fiber and pressure-sensitive piezo-mesh, designed to be worn directly against the skin from shoulder to wrist on either or both arms. Unlike augmentations that replace or enhance a specific sensory modality, the Sleeve works by dramatically amplifying the body's existing proprioceptive system — the unconscious sense of limb position, tension, and spatial orientation. Micro-pressure sensors across the garment's surface feed continuous data into a subcutaneous induction node implanted at the wrist, which translates the signal stream into enhanced proprioceptive feedback to the wearer's nervous system. The result is a spatial awareness of one's own body that extends slightly beyond the skin, allowing operators to sense nearby objects, surfaces, and even air pressure differentials through the garment without looking at their hands.

Arcturus designed the Sleeve primarily for close-quarters combat specialists and EOD technicians who need precise tactile intelligence in zero-visibility conditions. The extended proprioceptive field — approximately four to seven centimeters beyond the skin surface — allows trained users to navigate confined spaces by feel alone, manipulate objects in complete darkness with near-surgical precision, and detect the approach of physical contact before it registers through normal touch receptors. The induction node implant is minor enough to fall below most augmentation registration thresholds, meaning the garment itself can be removed and the user declared clean while retaining the interface hardware.

A secondary function, developed through field feedback from Arcturus contract operators, is the Sleeve's use in detecting micro-tremors and vibration patterns in surfaces the wearer touches. Experienced users can identify whether a surface is hollow, pressurized, or carrying current by resting a Sleeved hand against it and interpreting the enhanced feedback — a capability that has made the garment unexpectedly popular among safebreakers and structural infiltrators well outside its intended military market.