Kimtech Pure* A8 UNITRAX* Shoe Covers (Codes 39370 / 39371 / 39372) — Low-Lint, Extra-Grip Cleanroom Shoe Covers (300/Case)

Kimtech Pure A8 UNITRAX Shoe Covers are cleanroom-focused disposable shoe covers engineered for dry particle and fluid (wet splash) protection with a low-lint poly-film laminated fabric, seamless bottom, and elastic features to improve fit and reduce tracking-related contamination. Kimberly-Clark positions the UNITRAX outsole design as a higher-grip, non-skid option intended to reduce slip risk while maintaining contamination-control behavior. Each case contains 3 bags of 100 shoe covers (300 total) and is double bagged for cleaner entry into controlled environments.

Cleanroom compliance note: These shoe covers are cleanroom packaged (double bagged), but the manufacturer technical data sheet does not position them as sterile. If your SOP (or EU GMP Annex 1 Grade A/B expectations) requires sterilized footwear/overshoes, select products supplied sterile with the required documentation.

Specifications:

Manufacturer codes / sizes: 39370 (SM/MD), 39371 (Universal), 39372 (XL/2XL)
Product type: Cleanroom shoe covers (disposable)
Protection intent: Dry particle and fluid protection
Fabric: Spunbond + polyethylene film laminate (poly-film laminated fabric)
Color: White (thread color varies by size code)
Style: Seamless bottom; elastic toe & heel; elastic ankle opening
Packaging: Double bagged and packed for cleanroom use
Case pack: 100 per bag; 3 bags per case (300 shoe covers)
Material exclusions (per manufacturer): Not made with natural rubber latex; not made with silicone; not made with BHT preservative

About the Manufacturer:

Kimtech products are produced under the Kimberly-Clark Professional portfolio, with published technical data sheets that detail materials of construction and test methods. The A8 UNITRAX Shoe Covers are positioned for clean manufacturing and quality control environments where footwear controls help reduce tracked-in contamination and support safer movement on potentially slick floors.

A8 UNITRAX Features:

Low-lint poly-film laminated fabric for contamination control
Dry particle and fluid (wet splash) protection
Seamless bottom for improved comfort and reduced seam exposure on the walking surface
Elastic ankle opening with elastic toe & heel to help maintain fit during walking
Double bagged and packed for cleanroom use
UNITRAX grip design promoted for improved traction versus leading alternatives (manufacturer marketing claim)

A8 UNITRAX Benefits:

Reduces footwear-driven contamination risk: Helps limit particulate carry-in from shoes when used with proper gowning flow and traffic controls.
Supports wet-floor work: Adds a barrier layer and traction focus for areas where splashes or damp floors occur.
More consistent fit: Elastic ankle/toe/heel features help reduce slippage and re-adjustment during use.
Cleanroom entry ready: Double-bag packaging supports controlled entry practices.

Best-Practice Use (Donning & Contamination Control):

Don in the gowning area: Put shoe covers on before entering the controlled zone to prevent tracking contamination past the boundary.
Handle by the opening: Avoid touching the sole; the sole is the highest-risk contamination surface.
Use a bench transition if available: Gowning benches reduce balance-related touches (walls/rails/garments) that can add contamination.
Confirm ankle overlap: Ensure the elastic sits above the shoe collar; if your SOP requires higher overlap, use ankle-high or overboot formats.
Control post-donning behavior: Avoid stepping off controlled traffic lanes and re-entering without changing footwear covers.

Process reminder: Shoe covers are one control. Pair them with tacky mats, defined traffic lanes, routine floor cleaning, and validated wipe-down practices for carts/materials to reduce recontamination.

Link to Kimtech A8 UNITRAX Shoe Covers Technical Data Sheet: Click Here

Other Similar Products Available From SOSCleanroom.com

Shoe Cover Alternatives (Coverage / Sterility / Barrier)

Kimtech A7 Ankle-High Shoe Covers: choose when your SOP calls for more ankle overlap.
KLEENGUARD A40 Shoe Covers (27000): barrier-focused shoe cover option for industrial controlled-entry programs.
Kimtech Pure A5 Sterile Cleanroom Boots: consider when sterile footwear components are required by SOP.

Notes: Need help matching footwear covers to your cleanroom class, gowning flow, and documentation expectations? Contact SOSCleanroom for practical selection guidance—including compatible wipe-down consumables for carts, pass-through items, and entry-point controls.

SOSCleanroom.com supports contamination-control programs with dependable supply, fair pricing, and responsive support.

Product page updated: Jan. 14, 2026 (SOS Technical Staff)

© 2026 SOS Supply. All rights reserved.

The Technical Vault

By SOSCleanroom

Kimtech Pure* A8 UNITRAX* Shoe Covers (39370/39371/39372) Low Lint Poly-Film Laminate Seamless Bottom Extra Grip (UNITRAX) Double-Bagged 300/Case

Kimtech Pure A8 UNITRAX Shoe Covers — footwear contamination control with published grip and barrier test data

Shown: Kimtech Pure A8 UNITRAX shoe covers (family codes 39370/39371/39372).

Why footwear is a priority contamination vector

In controlled environments, floors act as collection surfaces for particles and residues. Footwear then transfers that contamination to traffic lanes, gowning areas, and work zones. Shoe covers are a basic control intended to reduce what is tracked in and to add a barrier layer during wet splash work. However, performance depends heavily on how the cover is donned, how traffic lanes are managed, and how frequently footwear covers are changed.

What this product is used for (manufacturer-stated intent)

Recommended for use in clean manufacturing environments.
Dry particle and fluid protection to help reduce tracked-in contamination and support wet splash tasks.
Slip-risk reduction focus through the UNITRAX “extra grip” design (qualification is still required for your floor chemistry and conditions).

Materials and construction (published basis)

The A8 UNITRAX shoe covers use a spunbond + polyethylene film laminate fabric, described as a low-lint poly-film laminated construction. The design includes a seamless bottom and elastic ankle opening with elastic toe & heel. Packaging is stated as double bagged for cleanroom use.

Material exclusions published by the manufacturer include: not made with natural rubber latex, not made with silicone, and not made with BHT preservative. These statements are commonly used for procurement and compatibility screening in regulated programs.

Specifications in context

Attribute	A8 UNITRAX Shoe Covers
Codes / sizes	39370 (SM/MD), 39371 (Universal), 39372 (XL/2XL)
Pack configuration	100 per bag; 3 bags per case (300 total)
Fabric	Spunbond + polyethylene film laminate
Design	Seamless bottom; elastic ankle; elastic toe & heel
Packaging	Double bagged and packed for cleanroom use
Cleanliness (published)	Helmke Drum Category I-II (IEST test method referenced)
Liquid barrier (published)	Hydrohead 297 mbar (AATCC 127 method referenced)

Published performance data: grip, cleanliness, and barrier

The manufacturer technical data sheet publishes skid resistance data (coefficients of friction) and a hydrohead result for barrier comparison. Use these values as comparative inputs and validate on your specific floors (finish, cleaner/disinfectant residues, moisture level, and traffic patterns).

Metric	Published result	Test method (as published)
Skid resistance (stainless steel) — static COF	2.7	ASTM D1894
Skid resistance (stainless steel) — dynamic COF	3.2	ASTM D1894
Skid resistance (vinyl) — static COF	2.5	ASTM D1894
Skid resistance (vinyl) — dynamic COF	2.9	ASTM D1894
Cleanliness	Helmke Drum Category I-II	IEST CC RP 0003.3
Liquid barrier	Hydrohead 297 mbar	AATCC 127

Gowning (donning) guidance to reduce contamination

ISO-first: align gowning discipline to cleanroom classification and operations control

Know your target class: ISO 14644-1 defines particle-based classification; your gowning program supports achieving and maintaining that class.
Monitor and manage: ISO 14644-2 addresses monitoring plans; gowning effectiveness is reflected in operational particle performance over time.
Operations control includes gowning: ISO 14644-5 emphasizes an operations control programme (OCP), including personnel management and gowning programme elements.
Don without contaminating the outside: hold the shoe cover by the opening, not the sole; avoid contact with benches, floors (prior to full don), and garments.
Set change frequency: define when shoe covers must be changed (e.g., wet-floor exposure, leaving controlled lanes, time-in-use limits).

EU GMP Annex 1: where footwear expectations escalate

Grades C/D: Annex 1 describes protective clothing and shoes/overshoes appropriate to the area to reduce contamination transfer.
Grade B (aseptic background): Annex 1 describes dedicated cleanroom clothing and sterilized components (including sterilized footwear/overshoes), with attention to correct wear and overlap.
Practical takeaway: if your SOP requires sterile footwear components, use sterile overboots/overshoes supplied and documented to that requirement—and validate the donning method.

Common failure modes (what to coach and audit)

Touching the sole during donning: treat the sole as contaminated; handle by the opening only.
Dragging before fully donned: don using a bench transition to avoid floor contact and balance touches.
Ankle gaps and poor overlap: confirm elastic placement; select ankle-high/overboot formats when required.
Re-entry without change: if someone exits controlled lanes, require footwear change before re-entry.

Source basis

SOSCleanroom product page (A8 shoe covers): https://www.soscleanroom.com/product/kimtech/kimberly-clark-kimtech-a8-shoe-covers/
Manufacturer technical data sheet (Kimtech Pure A8 UNITRAX Shoe Covers): https://www.soscleanroom.com/content/Kimberly_Clark_PDF/KIMTECH-PURE%20UNITRAX%20A8%20Shoe%20Covers%20Technical%20Data%20Sheet.pdf
ISO 14644-1 (classification context): https://www.iso.org/standard/53394.html
ISO 14644-2 (monitoring plan context): https://www.iso.org/standard/53393.html
ISO 14644-5 (operations / gowning programme context): https://www.iso.org/standard/88599.html
EU GMP Annex 1 (sterile medicinal products; gowning expectations): https://health.ec.europa.eu/system/files/2022-08/20220825_gmp-an1_en_0.pdf

SOSCleanroom is the source for this Technical Vault entry.

Briefed and approved by the SOSCleanroom (SOS) staff.

If you have any questions please email us at Sales@SOSsupply.com

Last reviewed: Jan. 14, 2026