WHOOP Bicep Band armband for WHOOP 5.0/MG — L/XL Jet Black, CoreKnit with Fast Link

The WHOOP Bicep Band L/XL is a CoreKnit armband in jet black that lets you wear your WHOOP 5.0/MG on your upper arm for comfortable, secure 24/7 tracking while freeing your wrist.

If you prefer wearing accessories on your wrist, work with equipment that gets in the way, or simply want an alternate placement for more comfortable long-term wear, this bicep band gives you a reliable wrist-free option. Designed for the WHOOP 5.0 and WHOOP MG housings, the L/XL size accommodates larger arms with an adjustable Fast Link closure and a performance-knit fabric engineered for both breathability and durability. Note: this band is not compatible with WHOOP Generation 4.0, and ECG measurements still require a wrist-worn accessory.

How does the Bicep Band keep WHOOP tracking continuous and accurate?

Placing the WHOOP module on the bicep keeps sensors close to blood flow and muscle tissue while avoiding wrist-based interference from watches or bracelets. The CoreKnit fabric maintains consistent contact without squeezing, and Fast Link adjustment secures the module so readings remain stable during movement.

• Engineered knit fabric for steady sensor contact and airflow
• Fast Link mechanism for micro-adjustments and a locked fit
• Designed specifically for WHOOP 5.0/MG housings to ensure alignment

Will this band fit my arm and how do I size it?

The L/XL version is intended for larger arm circumferences and offers a broad adjustment range to accommodate different builds. Measure around the fullest part of your upper arm and compare to sizing guidance from WHOOP; the Fast Link system lets you quickly tighten or loosen the band for a custom fit.

• L/XL sizing for larger arms and athletic builds
• Fast Link allows one-handed adjustments for on-the-go comfort
• Stretchable CoreKnit fabric adapts to arm shape without bunching

Is the Bicep Band comfortable for all-day and overnight wear?

CoreKnit material combines softness with durability so the band can be worn around the clock without irritation for most users. Breathable construction reduces sweat buildup, and the low-profile Jet Black design minimizes visual distraction whether you’re training, working, or sleeping.

• Performance knit resists chafing during extended wear
• Breathable weave helps manage moisture and temperature
• Low-profile silhouette sits flat against clothing for less bulk

What can I do with the bicep placement that I can’t do on the wrist?

Bicep placement is useful when wrist movement or accessories would interfere with comfort or performance. It frees your wrist for watches, bracelets, or job-specific tools, and can be a better option for activities where wrist sensors are obstructed.

• Wear a smartwatch or jewelry while still capturing WHOOP data
• Better fit for activities that require wrist mobility or gloves
• Alternative placement for those who find wrist wear uncomfortable

Who is this for: The WHOOP Bicep Band L/XL in Jet Black is aimed at WHOOP 5.0/MG users who need a secure, comfortable wrist-free option—larger-armed athletes, professionals who wear watches or wrist tools, and anyone seeking longer-term comfort without sacrificing continuous data capture. It’s not suitable for WHOOP Gen 4.0 housings, and if you rely on ECG features, keep a wrist-worn device available for those measurements.