The Ultimate Stress Test: B1 vs. Cotton

The Ultimate Stress Test: B1 vs. Cotton


The days of wondering which tee reigns supreme are over. The results of our rigorous studies are in, and we invite you to follow along as we subject two tees to a series of real-world stress tests. In one corner, the TRUEWERK B1 Sun Tee. In the other, a 100% Cotton Tee.

Now, let’s get ready to rumble!!! 


First round: Stretch Test

The B1 and Cotton Tee were stretched to their maximum limit to test their elasticity and discover which material could withstand this challenge without tearing or losing its shape.


B1 wins the round.


The Cotton Tee is composed of rigid, individual yarn fibers with primarily one direction of stretch. As the 100% Cotton Tee was pulled and twisted, individual fibers began to break down, and the collar started to pop. The result? A significantly stretched-out shirt.


The B1 Sun Tee, composed of four-way stretch fabric, is designed to move with you both horizontally and laterally for complete mobility. The polyester fibers retained their shape, and there was no difference in the construction after the stretch test.


Second round: Abrasion- and Tear-Resistance

The last thing anyone wants is to snag their fresh tee, but that’s exactly what we set out to do by rubbing both shirts against the rough texture of a nearby gnarly tree branch. Who would fare better?


Once again, B1 wins the round.


The Cotton Tee has limited resistance and tends to stretch after being worn or washed. A drag along a sharp tree branch resulted in two different holes in the shirt.


The B1 Sun Tee is constructed from an interlock knit, and its fabric has increased built-in stretch, recovery, and retention of its original shape. The process of interlocking results in a more stable material that is durable and less likely to break. This explains why our abrasion- and tear-resistance test, performed on that same tree branch, resulted in no tearing.


Third round: Dry Time

In our third and final test, both tees were splashed with water, then left for seven minutes to dry in the sun. Results? If you were hoping for a come-from-behind victory for the Cotton Tee, we’re sorry to disappoint you.


B1 wins the final round.


The Cotton Tee absorbed and held onto its water, making it dry slower. As a result, the tee was significantly damp after seven minutes. 


On the other hand, the B1 Sun Tee’s polyester fabric is hydrophobic, meaning it repels water. In addition, the B1’s wicking treatment lends to a faster dry time. In our test, water spots were gone at the end of the seven minutes. 


So, there you have it. The B1 Sun Tee outperformed in every category of our stress test. But it’s more than a tough shirt. It’s also a supremely comfortable one, especially when the heat is on. Because while the versatile B1 can be worn against the skin any time of the year as a base layer, it’s especially effective during hot weather. In addition to its four-way stretch, tear resistance, and quick dry time, it also features maximum breathability, wicking properties, and the all-important built-in UPF 50+ protection. That adds up to one stress-free piece of workwear.



Shop the B1 Line, available in men’s and women’s fit, in short, long-sleeve, and sun hoodie styles. And check out the entire Hot Weather Collection.

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