Skip to product information
1 of 1

Next Cult Brand

The Big Flex Theory Funny Gym Sweatshirt | Science Based Lifting Sweater | Bazinga Pump Cover Pullover

The Big Flex Theory Funny Gym Sweatshirt | Science Based Lifting Sweater | Bazinga Pump Cover Pullover

Regular price €39,95 EUR
Regular price Sale price €39,95 EUR
Sale Sold out
Taxes included. Shipping calculated at checkout.
Size

Size Guide

  • Free shipping from 99€
  • Made just for you - zero waste, better environment
  • 14-day return policy

This clever crewneck sweater features the ultimate science-based lifting pun for genius-level gym bros.

Declares your dedication to the scientific method of achieving massive gains and a huge arm pump.

The perfect intellectual pump cover for hiding your muscles until you're ready to reveal your hard work.

A must-have funny gym sweatshirt for any lifter who loves a clever nerd and fitness meme crossover.

Rep your brain and your brawn in this iconic and hilarious "Bazinga!" themed workout sweatshirt.

Unlock the fundamental theory of gains with this "The Big Flex Theory" gym sweatshirt. This brilliant crewneck pullover is designed for the lifters who know that building a powerful physique is both an art and a science. The design merges the world of popular sitcom science with the iron-clad discipline of weightlifting, creating a hilarious and relatable statement for the fitness community. This isn't just a workout sweatshirt; it's a testament to your dedication to progressive overload, proper form, and the relentless pursuit of the pump. Whether you're a powerlifter who crunches the numbers or a bodybuilder who appreciates a good "Bazinga!" joke, this funny gym sweater is your new uniform. It’s the perfect conversation-starting top for the weight room, helping you connect with fellow intellectuals of iron. Embrace your inner gym nerd and let this be your go-to pump cover for every scientific lifting session.

A sturdy and warm sweatshirt bound to keep you warm in the colder months. A pre-shrunk, classic fit sweater that’s made with air-jet spun yarn for a soft feel.

• 50% cotton, 50% polyester
• Pre-shrunk
• Classic fit
• 1x1 athletic rib knit collar with spandex
• Air-jet spun yarn with a soft feel
• Double-needle stitched collar, shoulders, armholes, cuffs, and hem

Disclaimers:
• Due to the fabric properties, the White color variant may appear off-white rather than bright white.
• Subtle orange hue shifts with lighting in the Orange color variant.

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the flammability, lead, cadmium, bisphenols and phthalates level requirements.

In compliance with the General Product Safety Regulation (GPSR), Next Cult Brand ensures that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact us at info@nextcultbrand.com or write to us Next Cult Brand.

Size Chart

Check out our Sizing Guide

Shipping & Delivery

Your orders are professionally handled by our print-on-demand partners (Printful & Printify), who choose the best shipping options for your location.

📦 Delivery Times: 2-14 business days (varies by location/season)
🚚 Shipping Costs: Calculated at checkout
🎁 Free Shipping: Orders over €99* (most regions)

Returns & Refunds

Yes, you can return your package within 14 days. Simply send us an email to info@nextcultbrand.com, and we'll guide you through the process. See the full Return Policy.

View full details

Do you have questions? We have answers!

How long does shipping take?

Delivery usually takes between 2-14 business days, depending on the exact location and the time of year.
All of our orders are shipped by our POD (print on demand) as soon as the product is produced. Our products are made on demand, so it usually takes a few days for production and a few days for delivery.

Can I return my package?

Yes, you can return your package within 14 days. Simply send us an email to info@nextcultbrand.com, and we'll guide you through the process. See the full Return Policy.

Why is my tracking information not updating?

Please be patient, as delays, especially through customs, are possible. If the status has not changed after 3 days, contact us at info@nextcultbrand.com

How do I find the right size for me?

We attach great importance to ensuring our clothing fits perfectly. On every product page, you'll find a size chart to help you determine your ideal size. If you're between sizes or unsure, we recommend choosing a size larger. This will ensure the items are comfortable and fit perfectly. See the full Size Guide.