37" Resistance Band- (OPI)

#0 Orange $8.95 $10.90 Sold Out
#1 Purple $9.95 $11.90 Sold Out
#2 Red $15.95 $18.90 Sold Out
#3 Blue $18.95 $21.90
#4 Green $23.95 $27.90 Sold Out
#5 Gray $30.95 $36.90
#6 Yellow $40.95 $47.90 Sold Out

You asked, we listened! Serious Steel 37" bands were developed to keep you under tension throughout your full range of motion.

  • Thickness: 4.5mm
  • Length: 37"
  • Material: 15 Layers of 100% Natural Latex and over 99.9% free of soluble proteins (latex allergens)
  • Resistance: 7-sizes, 2lbs-200lbs of resistance
  • Sold individually
  • Source: Sri Lanka
  • Color(s): Orange (#0), Purple (#1), Red (#2), Blue (#3), Green (#4), Gray (#5), Yellow (#6) 
  • #0 Band: 1/4 in. 2-15 lbs.
  • #1 Band: 1/2 in. 5-35 lbs.
  • #2 Band: 13/16 in. 10-50 lbs.
  • #3 Band: 1 1/8 in. 25-80 lbs.
  • #4 Band: 1 3/4 in. 50-120 lbs.
  • #5 Band: 2 1/2 in. 60-150 lbs.
  • #6 Band: 3 1/4in. 80-200 lbs.
Care Guide
  • Storage: Keep out of direct sunlight, humid environments or excessively hot or cold temperatures.
  • Cleaning: Yes, bands can be hand washed. Hand wash with warm water and a non-abrasive cleaning solution. Hang to dry. (Ex. Dawn dish soap).
  • Caution: Avoid direct contact with knurling, asphalt, concrete, or any abrasive surface. If using your band on any of these or a board system, we recommend a protective barrier like our Band Guard, a towel or old shirt. This helps maximize the durability and life of your band.
  • Life Span: Based on average use -which we assume to be 1-hr of use 3 times per week- bands should last 12-18 months in residential settings and 6-9 months in commercial settings.
  • Normal Wear & Tear: Our bands are one continuous piece of latex made through a proprietary layering process with a total of 15 layers. Over time the bands may begin to peel or show other signs of use. This is normal and does not affect the integrity or application of bands when minor. If peeling gets worse, it may be a sign that your band is aging and may be due for a replacement.

If you are looking for more information or images of 37" Bands check out the original new items here. 

*If you have a sensitivity to latex, purchase and use this product with caution.*

        Band Length Recommendations

        Still struggling to determine which band length is right for you?

        Below are three different user heights and their preferred band lengths for a variety of movements.

        User 1: Height 5'2"

        Image: User 1 curling a 32" #1 Band

        • Chest Press: 32”
        • Tricep Press: 32”
        • Overhead Press: 37” or 41”
        • Front Squat: 37”
        • Deadlift: 32”
        • Bicep Curl: 32”
        • Bent Row: 32”
        • Calf Raise: 32”

        User 2: Height 5'9"

        Image: User 2 curling a 37" #3 Band

        • Chest Press: 32”
        • Tricep Press: 32”
        • Overhead Press: 37” or 41”
        • Front Squat: 37”
        • Deadlift: 32”
        • Bicep Curl: 37”
        • Bent Row: 37”
        • Calf Raise: 37”

        User 3: Height 6'

        Image: User 3 curling a 37" #3 Band

        • Chest Press: 32”
        • Tricep Press: 32”
        • Overhead Press: 41”
        • Front Squat: 41"
        • Deadlift: 32”
        • Bicep Curl: 37”
        • Bent Row: 37”
        • Calf Raise: 37”

        Band Length Comparison

        Check out this side by side comparison to get a visual gauge on our band length differences.

        Interested in some of our other band lengths? Check them out here.

        Band Tension Comparison

        • Bands can safely stretch 2.5x their length
        • 32" x 2.5 = 80" safe max stretch
        • 37" x 2.5 = 90" safe max stretch
        • 41" x 2.5 = 100" safe max stretch
        • Shorter bands will give you a higher tension for the same movement. 

        Less Slack = Greater Gains

        We created 37" Bands to provide optimal time under tension throughout your entire range-of-motion. 

        Keeping tension on the bands keeps your muscles engaged, producing better results & greater gains.

        Exercise Anywhere

        Resistance bands are the ultimate travel fitness tool.

        Bands are light and compact allowing you to train anywhere.

        Endless Uses

        From stretching and mobility to bodybuilding or powerlifting, resistance bands can be your primary training source or a great supplement to your regular routine. 

        Do you plan on using your bands with a band board training system? Consider purchasing a Band Guard to protect and prolong the life of your bands.


        SRI LANKA

        Top Quality | Fair Trade | Sustainable

        Our manufacturing facility has been a top producer of natural rubber latex resistance bands since 1947.

        Raw Materials are sourced locally through heavily regulated, sustainable and eco-friendly farming. 

        Sri Lanka is also free from child labor.

        Premium raw materials are the foundation of our bands, but our proprietary manufacturing process is what makes them some of the best bands in the world.


        The seam on our bands is not a mistake or defect. Actually, this is one way you can tell you have a quality band!
        How our bands are made:
        Our bands are made through a continuous layering process with 15 total layers. The 15 layers from one piece of latex gives the band a seam on the inside and outside. Our manufacturing process helps maximize durability, elasticity and tension consistency. 

        The consistent tension curve throughout your ROM is the best way to feel the difference between a high and low quality band. Lower quality bands have a force curve that typically flattens out when stretched beyond 70%.


        Resistance bands are basically big, rubber bands. You have probably noticed that old rubber bands it will start to dry-rot.

        To prevent dry-rot and maintain elasticity, a natural and non-toxic protective coating is added to each band. Natural Rubber Latex needs additional components to maintain material stability and elasticity. Even though it is natural and non-toxic, this could irritate skin if you are allergic to, or have a latex sensitivity.

        Can bands be washed to minimize this?

        Yes. This can be minimized by washing the band with warm soapy water. Air dry or pat dry with a clean towel.


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