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Next Cult Brand

The Big Flex Theory Gym Tank Top | Science Based Lifting Muscle Shirt | Bazinga Workout Vest

The Big Flex Theory Gym Tank Top | Science Based Lifting Muscle Shirt | Bazinga Workout Vest

Běžná cena €29,95 EUR
Běžná cena Výprodejová cena €29,95 EUR
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Size Guide

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

This muscle shirt features the iconic "Big Flex Theory" design for lifters with brains and brawn.

The perfect funny gym tank top for showcasing your scientific approach to achieving a massive pump.

A lightweight and breathable athletic shirt designed for maximum mobility during intense lifting sessions.

Let the "Bazinga!" tagline on this vest announce your clever and gains-focused sense of humor.

A must-have workout tank top for any serious lifter who loves a smart nerd and fitness culture crossover.

Apply the scientific method to your gains with this "The Big Flex Theory" gym tank top. This muscle shirt is the ultimate fusion of intellectual humor and hardcore training dedication, made for lifters who appreciate a clever pun. The design is a brilliant nod to the calculated, evidence-based approach behind effective weightlifting, all wrapped up in a popular culture reference everyone knows. This funny workout tank top is cut for performance, giving you unrestricted range of motion for deadlifts, squats, and curls while you test your hypotheses on muscle growth. It’s more than an athletic shirt; it's a statement that you're as smart as you are strong. Perfect for the gym bro, the powerlifter, or the fitness enthusiast who never misses an episode, this vest will quickly become your favorite funny gym tank top. Be prepared for laughs, nods, and questions every time you wear this clever top.

A classic, staple tank top. A timeless classic intended for anyone looking for great quality and softness.

• 100% combed and ringspun cotton
• Tri-blends are 50% polyester/25% combed/25% ringspun cotton/rayon
• Fabric weight: 4.2 oz/yd² (142.40 g/m²), triblends: 3.8 oz/yd² (90.07 g/m²)
• 30 singles thread weight
• Side-seamed
• Blank product sourced from Nicaragua, Honduras, or the US

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 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.

Zobrazit veškeré podrobnosti

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.