Body Armor Care + Retirement

Body armor has a usable life. A vest manufactured in 2020 will not perform like it did on day one in 2027 — even if the owner has never been shot. Understanding the care-and-retirement side of ownership is as important as understanding ballistic rating.

Care labels and ASTM F3115

US-market body armor ships with a care label that follows ASTM F3115 — the standard governing wear-and-care labeling. Every vest should surface:

Manufacturer, model, serial, lot
NIJ certification level and standard (e.g., "NIJ 0101.06 Level IIIA")
Date of manufacture
Warranty end-date (typically 5 years from DoM for soft armor)
Inspection instructions
Cleaning instructions (what solvents are permitted)

If your care label lacks these, you have a non-compliant product. Every NIJ CPL-listed vest is required to carry F3115-compliant labeling.

Inspection intervals

Most manufacturer documentation calls for:

Daily — visual self-check when donning
Monthly — formal inspection by the wearer or unit-level armorer (stitching, carrier wear, panel integrity palpation)
Annually — armorer-level inspection (panel insertion, laminate check, UV / moisture damage assessment)

Agency policy typically codifies these intervals into a Written Directive.

What actually degrades soft armor

Para-aramid (Kevlar, Twaron) and UHMWPE (Dyneema, Spectra) soft-armor panels degrade from:

UV exposure — both fiber families lose ballistic performance under prolonged sunlight. This is why NIJ 0101.06 requires opaque carriers and why you don't store armor on car dashboards.
Heat cycling — UHMWPE particularly is sensitive to temperatures above ~80°C / 176°F. Hot cars, sauna environments, and laundromat dryers kill Dyneema fast.
Moisture — less of an issue on modern laminates, but early unlaminated Kevlar degraded materially when wet. Modern panels handle sweat and rain fine; submersion is still a problem.
Ballistic impact — a panel that stopped a round is not re-usable in that zone.

The (deservedly infamous) Second Chance / Zylon recall case demonstrated that degradation can happen faster than a spec's warranty period. See the Zylon failure history for the details. Modern panels don't have Zylon's thermal sensitivity, but the principle — that real-world conditions degrade fibers faster than controlled test conditions — is unchanged.

Hard armor plates

Ceramic and composite rifle plates have different failure modes:

Ceramic fracture — dropped plates can internally fracture even without visible damage. Manufacturers specify drop-test retirement (typically "retire if dropped from above 1m / 3ft").
Strike-face spall — accumulated small-impact strikes (airsoft, training hits) can eventually compromise ceramic.
Delamination — composite backers separate from ceramic face after heat cycling or chemical exposure.

Some OEMs X-ray plates on an annual armorer rotation. Most agencies don't.

Post-shot handling

If a vest or plate has stopped a round:

Retire the panel that stopped the round. There is no field re-certification. That panel is no longer reliable.
Retain per agency policy — many agencies keep shot panels for post-incident review.
Some OEMs offer replacement programs at discount for shot panels, contingent on returning the article.

The carrier (webbing, PALS straps, inner liner) can be reused with a fresh panel from the same model/size.

Retirement

Warranty end-date is the minimum retirement signal. Depending on use severity, retirement may be warranted earlier:

Panels that have stored outside their opaque carrier for extended periods
Panels subjected to documented heat or chemical exposure
Panels that have experienced an identified impact event

Agencies that run a formal armor-retirement rotation typically replace soft armor on a 4-to-5-year cadence, matching BVP grant cycles. See BVP grant guide for reimbursement alignment.

Body armor complete guide — pillar
NIJ 0101.06 standard — the standard whose care expectations this article operationalizes
ASTM F3115 — labeling standard