Poolside Blue - Premium FKM Rubber Strap (for Zenmaster)
Poolside Blue - Premium FKM Rubber Strap (for Zenmaster)
VIP DEAL: PLEDGE JUST $2 TODAY, GET A FREE FKM RUBBER STRAP
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Customize your Zenmaster look with selection of premium FKM rubber straps in a variety of curated colors. FKM rubber is highly resistant to wear and tear, which is why it's often used in the aerospace and automotive industries.
You'll notice when you pick your straps up out of the box that they're unexpectedly weighty. That's because of the super high density of FKM rubber. This is the highest quality rubber you can find.
Switch between your included metal bracelet and an FKM rubber strap of your choice effortlessly, thanks to the quick release buttons on both bracelets, to instantly change the look and wrist-feel of your Zenmaster watch.
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- 2-Year Warranty

Premium FKM Rubber
FKM rubber is the best quality rubber you can find. This high density rubber is incredibly resistant to wear and tear, which is why it's often used in the aerospace and automotive industries.
Rich Texture
Our rubber straps are strong and weighty, featuring a detailed crosshatch texture that gives it a refined look. Unlike silicone rubber straps, FKM rubber straps do not attract dust.
Sizing is Easy
Our FKM rubber straps are cut-to-size. Size your rubber strap by cutting it to the right length and use one of the 2 micro-adjustment holes on the buckle for the perfect fit.
Switching is Even Easier
Go from sophisticated to sporty with ease, thanks to quick release pins on both Zenmaster's steel bracelet and our FKM rubber straps.
You Choose Your Look
Swap your metal bracelet for your FKM rubber strap to change up the wrist-feel and achieve a completely new aesthetic. You choose your look.
Frequently Asked Questions
What makes FKM rubber straps different from regular rubber straps?
FKM (Fluoroelastomer) rubber is a premium material known for its superior durability, flexibility, and resistance to heat, chemicals, and sweat. Compared to standard rubber, FKM has a higher density, giving it a more substantial, premium feel on the wrist.
Despite its density, it remains comfortable and well-balanced, ensuring a luxurious wearing experience without feeling overly heavy.
Is the FKM rubber strap waterproof and sweat-resistant?
Absolutely. The strap is fully waterproof and resistant to sweat, oils, and UV exposure. This makes it ideal for daily wear, workouts, hot climates, and water-related activities while maintaining its structure and color over time.
How do I cut my FKM rubber straps to size?
The strap is designed for a custom fit by trimming excess length, by cutting off an equal amount of segments (blocks) from both straps (inner and outer).
To adjust it properly:
- Measure your wrist size and determine how many segments need to be removed.
- Detach the strap from the clasp to access the cutting sections.
- Cut evenly from both sides (inner and outer strap) to maintain symmetry.
- Start conservatively—cut one section at a time and test the fit before trimming more.
- Reattach the strap to the clasp, ensuring a snug but comfortable fit