Why Ünis?
Your Running Shoes
Are Destroying
Your Body at Work.
Cushy foam was engineered for forward motion on a track — not 12-hour shifts on hard floors. Every hour you stand in the wrong shoe, your alignment suffers. The Perform Blackout was built for exactly this.
Reviews
Running Shoes Were Never
Designed for Your Job.
They're engineered for forward propulsion on a track — not standing, pivoting, and reacting on hard floors for 10+ hours.
Unstable Under Your Feet
Running shoes flex and compress with each step — that's by design. But when you're standing still, that same instability transfers straight to your ankles, knees, and hips. You're constantly micro-correcting your balance without even knowing it.
Cushy Foam = Uneven Sinkage
That thick, soft midsole feels good at first. But after hours of standing, your foot sinks unevenly into the foam — tilting your arch, rolling your ankle inward, and silently throwing off your entire body alignment from the ground up.
Your Whole Body Pays the Price
When your foundation is unstable, your body compensates up the chain. Knees rotate inward. Hips tilt. Your lower back takes on excessive load. By hour eight, you're not just tired — you're in real pain.
Zero Protection for Real Environments
Running shoes offer no slip resistance on wet tile or slick floors, and no fluid resistance when spills happen. One wrong step on a wet surface and your shift just got a lot harder.
Your Shift Demands More
Than a Running Shoe Can Give.
High-Density Midsole.
Built to Stand On.
We replaced the plush, unstable running foam with a high-density performance midsole engineered specifically for prolonged standing and all-day walking. Your foot stays level. Your joints stay aligned.
- Firm, stable base — no uneven sinkage under your arch
- Supports lateral movement and quick direction changes
- Keeps your hips, knees, and back properly aligned all shift
- OrthoLite® insole for cushion where you need it most
Slip-Resistant.
Certified.
Our GRIPSTICK™ outsole is independently tested and certified to ASTM F3445 slip-resistance standards. Whether you're on wet tile, polished concrete, or an oil-slicked kitchen floor — you're not going anywhere you didn't choose to go.
- ASTM F3445 certified slip resistance
- Multi-directional traction pattern for lateral stability
- Durable rubber compound built for hard floor environments
- Performs on wet, dry, and greasy surfaces
Fluid-Resistant.
Wipes Clean in Seconds.
The DuraShell™ upper resists fluids and stains at the surface level — meaning spills, splashes, and messes wipe right off instead of soaking through. Durable, abrasion-resistant, and built shift after shift.
- Fluid and stain-resistant outer shell
- Breathable construction — your feet stay dry from the inside too
- Memory foam ankle guard for all-day comfort
- Wide toe box — no squeezing, no blisters
Built for Every Professional
Who Works on Their Feet.
The Perform Blackout was designed by nurses for nurses — and adopted by every profession that demands the same.
Healthcare
Nurses, techs, and therapists logging 12-hour shifts on hard hospital floors
Restaurant & Hospitality
Kitchen spills, wet floors, constant movement — every minute of service
Warehouse & Industrial
Concrete floors, long shifts, and lateral loading that running shoes can't handle
Salon & Spa
All-day standing on hard surfaces — your feet deserve better than flat insoles
Retail & Service
Clock-in to clock-out on your feet — consistent support from first step to last
Perform Blackout vs.
Your Running Shoes.
| Feature | Üni Perform Blackout | Running Shoes |
|---|---|---|
| Stable Midsole for Standing | ✓ High-density performance foam | ✗ Soft foam = instability |
| Slip-Resistant Outsole | ✓ ASTM F3445 Certified | ✗ Not rated for wet floors |
| Fluid-Resistant Upper | ✓ DuraShell™ technology | ✗ Mesh absorbs fluids |
| Lateral Movement Support | ✓ Multi-directional traction | ✗ Optimized for straight-ahead only |
| OrthoLite® Insole | ✓ Included | Varies |
| Wide Toe Box | ✓ No squeezing or blisters | Rarely |
| Built for 12-Hour Shifts | ✓ Engineered for it | ✗ Designed for a 5K |
What They're Saying.
"I've tried every 'nurse shoe' out there. These are genuinely different. My feet used to ache by hour six. Now I'm finishing 12-hour shifts and barely thinking about my feet. The stability is unlike anything I've worn before."
"I work a full dinner service — 10 hours on slick kitchen tile. I slipped in my old shoes twice. Haven't had a single slip since switching to these. The grip is insane and they clean up in thirty seconds. Worth every penny."
"My back pain was getting bad. My podiatrist actually suggested looking for a more stable work shoe — and these nailed it. The difference in how I feel at the end of a shift is night and day. I recommended them to my entire team."
Got Questions?
The Low cut is our most popular profile — a clean, classic silhouette that works in any professional environment. The Mid cut extends up the ankle, providing extra lateral support and stability. Both use the same stable midsole, DuraShell™ upper, and GRIPSTICK™ outsole.
The Perform Blackout fits true to size and is unisex. Women's sizes run W5–W12.5, and men's run M11.5–M15. Overlapping sizes are listed as both (e.g. W8.5/M7). If you're between sizes, we recommend sizing up for a more comfortable all-day fit.
Yes — our GRIPSTICK™ outsole is independently tested and certified to ASTM F3445, the industry standard for slip resistance in professional environments. It's rated for wet, dry, and greasy surfaces. No marketing claims — actual certification.
Wipe down with a damp cloth or a mild cleaner — that's it. The DuraShell™ upper is fluid and stain-resistant at the surface level, so most spills and messes clean off in seconds.
Yes — the Perform Blackout is HSA/FSA eligible. Pay with your health savings or flexible spending account at checkout.
We offer a 30-day return window. If you're not completely satisfied, reach out through our Returns Portal and we'll take care of you. We stand behind every pair we ship.
Stop Wearing Running Shoes
to a Standing Job.
The Perform Blackout was built for exactly what you do — stable midsole, certified slip resistance, fluid-resistant upper. Get yours today.
Individual results may vary. ASTM F3445 slip-resistance certification applies to outsole materials as independently tested. © 2025 Üni Performance. All rights reserved.
