FAQ
About the product
What is the lifespan? Can it be used forever?
While VRTX bands are highly durable, due to the nature of the rubber material, their elasticity will gradually decrease with repeated use.
Testing has confirmed the following results:
・Stretching 2.5 times approximately 30,000 times → Loss of approximately 80% of original strength
・Stretching 2.5 times approximately 100,000 times → Loss of approximately 50% of original strength
Actual lifespan will vary depending on training frequency, load, and usage environment.
While this does not significantly affect safety, you may want to consider replacing your band in the future depending on your experience and training load.
After use, rubber fibers came out. Is this a safety issue?
Rest assured, the VRTX band has a multi-layer structure in which dispersed rubber fibers are wrapped in fabric fibers, and is designed to maintain the overall structure even if some of the fibers break or protrude to the surface. Its
durability has been confirmed, even in a tensile test in which it was stretched 2.5 times its original length more than 100,000 times. It can be used safely for general training purposes.
Regarding initial fraying
Upon opening or after only a few uses, you may notice fraying (thin elastic bands).
This does not mean that the elastic has broken with use, but rather that the sewing needle cut some of the elastic fibers on the inner surface of the band when it was sewn. This
does not affect the band's toughness, safety, or resistance, so please rest assured. Simply cut it with scissors.
What is the strength of each number based on?
The strength of a VRTX band is defined by the resistance (load) when the band is stretched twice its original length.
Therefore, as the number increases, the amount of rubber fiber used increases, indicating stronger resistance.
When comparing with other brands, please note that each brand defines strength differently, so comparisons cannot be made simply by color or number.
Are there any precautions to take when washing?
When washing, be sure to put the item in a laundry net. Also, please note the following precautions:
◎ Wash in water at 40°C or below.
◎ We recommend washing with a neutral detergent.
X Do not dry clean. X Do not
use bleach or fabric softener.
X Do not wash with sharp objects.
X When using a dryer, use low heat. Using high heat or an iron may cause deformation.
About strength selection
Regarding strength and resistance selection
If you are new to VRTX, please refer to the My VRTX
I'm having trouble deciding between the loop type and the multi-type. Any advice?
If you're having trouble choosing, we recommend choosing based on your primary purpose.
While both types can be used for strength training and stretching, the loop type is recommended for strength training, while the Multi-Band is recommended for stretching. The
loop type is more versatile for strength training and competitive use. The Multi-Band has some limitations, especially for lower-body exercises (squats).
For stretching, the Multi-Band's adjustable length makes it easy to stop and hook at the desired stretch point. This allows for a more relaxed stretch.
Of course, personal preference is also a factor. For example, some people use the Multi-Band for strength training because of its adjustable intensity and the convenience of only one strap. Decide based on your intended use.
I have a third year junior high school student and would like to use it for stretching etc. What strength would you recommend?
If you are heavier, you may want to use a stronger band (number 3 or higher).
If you are purchasing only one band, you may want to choose the middle one, number 1. (The trainer in the video is using number 1 band.)
What size would be best for my daughter, a 5th grade elementary school student (who wants to improve her karate punches)?
A karate player once showed me some punch training.
Please refer to the link below. He used the No. 00 and No. 0 bands.
I'm a woman in my 40s who wants to start exercising, but I feel like the three beginner bands are not enough for me. (I've been losing weight less and less over the years, so I want to increase my muscle mass and basal metabolism.)
If your goal is to increase your basal metabolic rate, it's more efficient to prioritize training your lower body (larger muscles).
When training your lower body, start with band #1, and if you feel the load isn't enough for your strength, switching to band #2 is a good choice. For upper body muscle training, it's best to start with band #0. (Answer for female users)
Band #00 offers a lighter load and is often used for stretching and rehabilitation, but it's also useful for strengthening inner muscles and fine-tuning the load.