ANSI/ISEA 138 Impact Resistant Gloves: The Complete Buyer's Guide to Back-of-Hand Protection (2026)

What Are Impact-Resistant Gloves?

Impact-resistant gloves — often called anti-impact, back-of-hand, or TPR gloves — are work gloves engineered to protect the knuckles, fingers, and the back of the hand from blunt-force trauma. That means the crushing hazards of dropped tools, swinging pipes, pinch points in machinery, and materials slipping off racks. A standard cut-resistant or leather glove does almost nothing against these threats: its shell is built to stop slices and abrasion, not to dissipate a concentrated blow.

The business case is straightforward. Hand injuries are consistently among the most common recordable workplace injuries — U.S. Bureau of Labor Statistics data cited by the ANSI blog references over 143,000 hand-related injuries in a single year, and industry sources estimate more than one million workers are sent to ERs annually with hand injuries. One frequently quoted figure: wearing appropriate gloves reduces the relative risk of a hand injury by roughly 60%. For an operation running hydraulic torque wrenches, pneumatic breakers, or pipe-handling crews, a single fractured metacarpal can mean weeks of lost time and a five-figure claim. Impact gloves are cheap insurance.

What changed the market was the arrival of a real, comparable test. Before ANSI/ISEA 138-2019, almost any glove with a chunk of rubber on the back could be marketed as "impact resistant" with no proof. The 2019 standard finally gave buyers a way to compare brands on the same scale — and to ask suppliers for a number instead of a claim.

ANSI/ISEA 138-2019: How Impact Protection Is Rated

The standard works by striking the glove's protective pads with a calibrated impact and measuring how much force actually reaches the hand. A 2.5 kg mass is dropped to deliver exactly 5 joules of impact energy. The glove is tested across multiple zones: eight knuckle strikes (four points across two gloves) and ten finger/thumb strikes (five points across two gloves). A force sensor under the anvil records the peak force that passes through.

The result is reported as Mean Transmitted Force (MTF) in kilonewtons (kN). Here is the counterintuitive part that trips up first-time buyers: a lower kN number means better protection, because less force reached the hand. The glove is assigned the lower of its knuckle and finger scores — so a glove that scores Level 3 on the fingers but only Level 2 on the knuckles is sold as a Level 2 overall.

To make those numbers tangible: 4 kN is roughly the force of a 900-pound weight dropped on the hand; 6.5 kN is about 1,400 pounds; 9 kN is just over one ton. Level 3 is the difference between a bruise and a fracture. Every compliant glove must carry a permanent pictogram showing the level, visible for the glove's working life — if a supplier can't point to that marking, the glove isn't certified to the standard.

EN 388 vs ANSI/ISEA 138: Why the US Standard Is More Useful

If your operation runs on CE-marked European gloves, you'll see impact reported under EN 388:2016 in the sixth position of the mechanical-risk pictogram. It is worth understanding exactly how the two standards differ before you write a spec.

The practical gap is twofold. First, EN 388 only checks the knuckles — it says nothing about whether your fingers are protected when a wrench slips. ANSI/ISEA 138 covers the fingers too, which is where a lot of pinched and smashed fingertip injuries actually happen. Second, a Pass/Fail result can't tell you whether a glove is marginally compliant or genuinely robust. The Level 1–3 scale lets a safety manager say "this crew needs at least Level 2" and mean it.

For global procurement, the clean answer is to specify both markings where the glove is sold into mixed markets, and to use the ANSI level as your internal minimum. It gives you the finer control.

EN ISO 10819: Anti-Vibration Protection for Powered Tools

Here is the part buyers most often confuse. Impact protection and vibration protection are not the same thing, and they are governed by different standards.

EN ISO 10819 (the 2013 revision is current) measures how well a glove's palm material reduces hand-arm vibration transmitted from powered tools — grinders, chippers, breakers, riveting hammers, and similar pneumatic or hydraulic equipment. The test characterizes the glove's transmissibility: the ratio of vibration reaching the palm with the material in place versus without it, measured across defined frequency bands (broadly 25–200 Hz and 200–1250 Hz). A glove only earns the EN ISO 10819 label if it demonstrably reduces transmitted vibration in the relevant bands — a "vibration-reducing" claim with no compliant test behind it is worthless.

Why this matters for the same crews we've been discussing: a rigger on a pneumatic impact wrench faces two simultaneous hazards — blows to the back of the hand, and sustained低频 vibration through the palm that contributes to hand-arm vibration syndrome (HAVS) over years of exposure. A glove that only carries ANSI/ISEA 138 will handle the first and ignore the second. If your risk assessment flags powered-tool vibration, you need a glove carrying both ANSI/ISEA 138 (back-of-hand) and EN ISO 10819 (palm) — and you should confirm both test reports, because they are issued separately.

TPR & Back-of-Hand Design: What Makes the Protection Work

The technology behind almost every certified impact glove is TPR — thermoplastic rubber — molded into segmented guards that flex with the hand. You'll see it as the rows of rubber "fingers" running across the knuckles and down each digit. Segmentation is deliberate: solid pads would block articulation, so the guards are broken into pods that bend at the joints.

Three design details separate a good impact glove from a box of rubber:

1. High-density vs low-density TPR. Denser TPR absorbs more energy but adds stiffness; the best designs tune density per zone — firmer over the metacarpals, more flexible across the knuckle joints. Ask the supplier which they used; "TPR" alone is not a spec.

2. Shell integration. The TPR must be bonded or sonically welded to a cut-rated shell (ANSI A4–A9 / EN 388), not sewn on as an afterthought that peels after a month of use. For oil & gas and mining, pair the back-of-hand guard with a cut-rated, palm-coated shell so one glove covers crush, cut, and abrasion.

3. Breathability and dexterity. A glove that's too hot gets taken off. Modern impact gloves use breathable knit shells and vented TPR to keep hands cool on 10-hour shifts — which is the real compliance win, because a glove worn all shift is the only one that protects.

Industries & Use Cases: Where Impact Gloves Deliver ROI

Oil & Gas and Petrochemical

Drilling decks, refineries, and pipeline crews handle heavy tooling, flanges, and pipe under time pressure. Falling spanners, pinched fingers in flange joints, and knocked knuckles on catwalks are daily risks. This is the textbook Level 3 environment, almost always paired with cut-rated and often anti-vibration shells. A single avoided fracture here pays for a crew's gloves many times over.

Mining (Underground and Surface)

Rock drills, roof bolts, and conveyor maintenance expose hands to both impact and vibration. Underground miners particularly benefit from combined ANSI/ISEA 138 + EN ISO 10819 gloves, since powered roofing and bolting tools run for long cycles. Mining contractors increasingly write Level 2–3 impact gloves into tender specifications.

Construction and Heavy Civil

Rebar handling, formwork, and steel erection involve constant knock and crush exposure. Level 2 is the common spec, balancing protection with the dexterity needed to tie wire, handle fixings, and grip tools. The productivity argument is real: workers keep gloves on because the TPR doesn't impede the task.

Hydraulic & Pneumatic Tool Handling

This is the specific scenario the standard was built around. Crews running hydraulic torque wrenches, impact drivers, and pneumatic breakers face concentrated, repeated blows plus tool vibration. Specify a glove with verified back-of-hand impact rating AND a vibration-reducing palm — and verify both, since most "anti-vibration impact gloves" only certify one.

Utilities and Maintenance

Line crews, plant maintenance, and shutdown teams move unfamiliar, heavy, and often awkward loads in confined spaces. Level 2 coverage with good dexterity is the usual sweet spot, frequently combined with hi-vis accents for low-light work.

How to Choose the Right Level: A 5-Step Framework

Step 1 — Run a hazard assessment. Document where blows, crush, and pinch points actually occur. Office-adjacent handling needs Level 1; machinery and falling-object exposure needs Level 2; drilling, heavy equipment, and demolition need Level 3. Don't over-specify — Level 3 adds bulk that hurts dexterity for light tasks.

Step 2 — Check for combined hazards. If cut, vibration, or chemical exposure coexists with impact, the base shell must carry the relevant rating too (EN 388 cut, EN ISO 10819, EN 374). A back-of-hand guard alone is never the whole answer.

Step 3 — Demand the finished-glove certificate. Request the ANSI/ISEA 138 test report (and EN ISO 10819 if vibration applies) for the actual assembled product, issued by an accredited lab. No report, no order.

Step 4 — Fit-test on the real task. Impact gloves vary hugely in bulk. Have end-users wear the candidate glove for a full shift on the actual job — not a 10-minute trial in a meeting room. Comfort drives compliance more than any spec sheet.

Step 5 — Build the TCO model. Unit price is the least useful number. Model: unit price × annual replacement rate × crew size, plus the avoided injury cost (lost time, medical, claim) at your historical incident rate. Level 3 gloves that actually get worn almost always win on total cost of ownership versus a cheap "impact-style" glove nobody keeps on.

Care, Inspection & Replacement

TPR guards degrade slowly and invisibly, so inspection discipline matters. Train crews to check before each shift: look for delaminated or detached pods, cracked TPR, and compressed padding that no longer springs back. Any glove with a missing or loose knuckle pod is out of service — the protection is gone even if the shell looks fine.

Washing extends life. Most knit-shell impact gloves are machine washable on a gentle 30–40°C cycle; turn them inside out to protect the TPR, skip fabric softener (it can break down coatings), and air dry. Tumble drying bakes the TPR and shortens lifespan. Establish a replacement cadence — many sites rotate pairs every 4–8 weeks in heavy use, longer in light duty — and log it so compliance is auditable.

Sourcing Wholesale Impact Gloves: What Buyers Need to Know

The global impact-glove market is concentrated in Chinese manufacturing clusters — Qingdao for nitrile-dipped and cut-resistant shells, the Yangtze region for knitted shells and dipping, and Wenzhou for industrial latex/nitrile lines. Most North American and European brands source from these same factories under OEM or private-label arrangements, so the differentiator is rarely "where" but "how verified."

When you source, pressure-test three things. Certification: full ANSI/ISEA 138 (and EN ISO 10819 if needed) testing at an accredited lab costs real money and takes 6–10 weeks per model — budget suppliers who skip it are a compliance liability. Shell quality: confirm the underlying cut and abrasion rating matches your hazard, because the TPR sits on top of it. Branding and MOQ: custom TPR color, logo, and cuff printing are standard, but minimums apply.

At Expedition Safety we supply ANSI/ISEA 138-rated impact gloves to distributors, oil & gas operators, and mining contractors worldwide, with FOB Qingdao pricing. Standard MOQ for custom-branded TPR impact gloves is 600–1,200 pairs per size per color; lead time from deposit to shipment runs 25–40 days, with 7–14 day air-freight reorder options at a premium. For 500+ pairs, volume discounts typically reach 35–45%. Pair your impact spec with our cut-resistant product catalog and review the 2026 safety glove guide for a full hazard-to-glove mapping.