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Mike Mentzer Heavy Duty gym pump cover crewneck front flat lay on white background
Mike Mentzer Heavy Duty vintage tribute with double-bicep pose against dark brick wall and melting distressed display typography by Most Natty
Close-up detail of Mike Mentzer Heavy Duty vintage tribute with double-bicep pose against dark brick wall and melting distressed display typography showing cracked vintage print texture
Model wearing Mike Mentzer Heavy Duty bodybuilding pump cover crewneck showing relaxed fit
Model wearing Mike Mentzer Heavy Duty bodybuilding pump cover crewneck showing front graphic print
Mike Mentzer Heavy Duty gym pump cover crewneck folded showing black fleece fabric and relaxed fit
Mike Mentzer Heavy Duty gym pump cover crewneck rear flat lay showing blank back on white background
Mike Mentzer Heavy Duty Pump Cover - Most Natty
Mike Mentzer Heavy Duty Pump Cover - Most Natty
Mike Mentzer Heavy Duty Pump Cover - Most Natty
Mike Mentzer Heavy Duty gym pump cover crewneck front flat lay on white background
Mike Mentzer Heavy Duty vintage tribute with double-bicep pose against dark brick wall and melting distressed display typography by Most Natty
Close-up detail of Mike Mentzer Heavy Duty vintage tribute with double-bicep pose against dark brick wall and melting distressed display typography showing cracked vintage print texture
Model wearing Mike Mentzer Heavy Duty bodybuilding pump cover crewneck showing relaxed fit
Model wearing Mike Mentzer Heavy Duty bodybuilding pump cover crewneck showing front graphic print
Mike Mentzer Heavy Duty gym pump cover crewneck folded showing black fleece fabric and relaxed fit
Mike Mentzer Heavy Duty gym pump cover crewneck rear flat lay showing blank back on white background
Mike Mentzer Heavy Duty Pump Cover - Most Natty
Mike Mentzer Heavy Duty Pump Cover - Most Natty
Mike Mentzer Heavy Duty Pump Cover - Most Natty
500+ LIFTER REVIEWS

Mike Mentzer Heavy Duty

Pump Cover
$58.00 $48.00 17% OFF

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91% Rated 'True to Size'
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🚚 ETA 5-10 business days
📦 Free shipping over $70+
USA printed & shipped
🛡️ Shipping protection

HEAVY DUTY.
HIGH INTENSITY.

Push the limits in our Mike Mentzer Heavy Duty Pump Cover. A nod to the golden era, made for lifters who still train like it’s 1979. Made with a durable and comfortable medium-heavy fabric blend and throwback look.

  • Vintage textured effect
  • Double-needle stitching - fail the set, not the fabric
  • Midweight 8 oz versatility - for cool weather or gym warmups
  • Ribbed cuffs + hem stays locked in through every rep
  • Printed label - no scratch, no distractions 
  • Soft 50/50 cotton-poly blend - comfortable and durable
  • Made with ethical US-grown cotton, DTG printed in the USA
PRINTED & SHIPPED FROM AMERICA.
  • Free shipping over $70 in the US
  • Out the door in 1–2 business days
  • US delivery: 5–10 business days
  • International: 2–4 weeks

Every package is insured from our hands to yours. If it gets lost or shows up destroyed, we make it right — no hoops, no arguments.

Full shipping policy & tracking → HERE

  • Classic fit with a slightly boxy, relaxed silhouette.
  • Room through the shoulders and body allows for easy layering and movement.
  • Midweight fabric with a soft interior for comfort.
  • Stay true to size for a standard fit. Size up for a looser or oversized feel, especially if you have a larger frame or are between sizes.
WHAT LIFTERS ARE SAYING
Micah C.

Will be wearing this for a month straight without washing it a single time.

Andrew L.

I really love the designs, the quality of the print and the fabric is awesome, the customer service is awesome as well! Looking forward to being a repeat customer 💪

Michael T.

Shirt is sick. Posted to instagram and tagged you guys. Thanks!

@TGULB

5/5