Quick answer
Utah Mammoth colours, breakaway build, Clayton Keller on the back — this fan jersey is cut from breathable athletic mesh for men. US sizing (men's S–3XL). Ships in 1–3 business days; free worldwide delivery at $57 or more; 30-day returns, first size exchange free.
✓ Dispatch in 1–3 business days✓ 30-day returns, no restocking fee✓ Free first size exchange✓ Tracked worldwide shipping
Utah Mammoth colours have looked roughly like this for decades. This breakaway jersey keeps that line intact with Clayton Keller named on the back.
Construction is straightforward: a breathable mesh body, vented side panels, heat-sealed lettering and a V-neck collar. Cut for men, sized men's S–3XL. Sizing follows the US scale, so the letter size you normally wear is the right call. It ships with the name and number already applied — nothing to iron or assemble on arrival.
It reads as Utah Mammoth gear anywhere, but the palette points straight back to Salt Lake City, Utah and Delta Center.
The cut is relaxed through the chest with room left for a hoodie underneath. The name and number are heat-sealed rather than printed on top.
At a Glance
| League | NHL |
| Team | Utah Mammoth |
| Player | Clayton Keller |
| Jersey type | Breakaway jersey |
| Made for | Men's |
| Colour | Black |
| Sizes | men's S–3XL |
| Fit | US Standard Relaxed Fit |
Specifications
| Material | Breathable Athletic Mesh (100% Performance Polyester) |
| Lettering | Durable Heat-Sealed Lettering & Numbers |
| Care | Machine wash cold inside out, tumble dry low |
Care Guide
Machine wash cold inside out with a mild detergent, then tumble dry low. Skip fabric softener and high heat, and do not iron directly over the lettering.
Fit & Sizing
US letter sizing (men's S–3XL), us standard relaxed fit. The cut sits between slim and boxy, so it layers over a tee without looking oversized. Between sizes and want a layer underneath? Take the size up.
Is This the Right Jersey for You?
This jersey is for Utah Mammoth fans who want Clayton Keller on the back — game day, watch-parties, and everyday team wear for men.
Shipping & returns
Tiered insured worldwide shipping: $7.00 on orders $0.00–$36.99, $5.00 on orders $36.99–$56.99, and free delivery on orders of $57 or more. Orders dispatch within 1–3 business days and arrive in 7–15 business days with full end-to-end tracking.
| Order total | Shipping fee |
| $0.00 – $36.99 | $7.00 USD |
| $36.99 – $56.99 | $5.00 USD |
| $57.00 & above | FREE |
✓ $57+ · Free worldwide delivery on orders of $57 or more✓ From $5 · Tiered flat rate from $5 under $57✓ 30 days · 30-day hassle-free returns, zero restocking fees✓ Free · First size exchange is completely free
Frequently asked questions
What if the jersey does not fit when it arrives?
You are covered by our 30-day hassle-free guarantee with zero restocking fees. If the fit is not ideal, contact our support team and your first size exchange is completely free.
Will the hem ride up when I sit or reach for my drink?
Side splits at the waist hem keep the jersey from riding up when you sit, lean, or raise your arms.
Does the Utah Mammoth name and number come already applied?
Yes. The jersey ships with Clayton Keller name and number already heat-sealed in place — no ironing or assembly on arrival.
How do I wash a Utah Mammoth jersey without damaging the numbers?
Turn it inside out, machine wash cold on a gentle cycle, then tumble dry low. Skip fabric softener and high heat — those are the two things that lift heat-sealed lettering over time.
