Back Strap
The URSA Back Strap is designed to hold wireless transmitters or receiver packs snugly against the centre of the back, between the shoulder blades.
- Secure Mic Pack Harness: Holds Transmitters or IEMs securely between shoulder blades. Transmitter aerialcan faceup or down depending on setup preference or interference considerations.
- Adjustable Fit: Adjustable gripper straps secure the Back Strap comfortably on different chest sizes - no slipping or shifting during movement. Available in Small, Medium or Large to match chest ranges precisely.
- Breathable, Stretchy Fabric: Made from URSA’s OEKO-TEX certified hypoallergenic material for all-day wear directly against skin.
- Easy to Wash: Machine Washable at 40 °C with detergent. Hang to air-dry or tumble-dry on low heat.
- Colour Options: Available in Beige or Black.
Sizing Guide
Choose the size that best fits the wearer’s chest circumference:
Size |
Chest Size Range |
Small |
32″–36″ (approx. 81–91 cm) |
Medium |
36″–40″ (approx. 91–102 cm) |
Large |
41″–45″ (approx. 104–114 cm) |
The adjustable straps ensure a secure fit for a variety of body shapes and sizes. Making it ideal for Theatre, Sports & Live Performances.
Trusted on set
Testimonials
“A great, comfortable & discreet option for talent wearing IEMs that prefer not to clip onto a belt or may want a more secure solution.In addition, almost a must have for filming sports/fitness content. Will hold a transmitter pack in place very reliably no matter the body movement, whilst also being very comfortable for talent.Will even have use when micing up an actor wearing a crop top or similar costume that wouldn't allow for a usual transmitter placement on the waist.”
“I have purchased and used many Ursa products before, primarily using the pouches to attach packs to clothing. However, I have found that when attaching them to women's bras, they can sometimes be uncomfortable for the wearer. The back strap, on the other hand, securely holds the pack in place, reducing any noticeable bulge through clothing and giving the talent more confidence that the transmitters will stay securely attached. Although the packaging describes them as ideal for sports and live events, I have successfully used the back strap in scripted drama where traditional straps and”
“I’ve been an actor in live theatre for most of my life. I’ve always hated the bulky mic pack belts that give you that weird hump at your waistline. This solves that issue. Fits between the shoulder blades and is very lightweight. I’ll never go back to the old mic pack belts.It’s a bit tricky to remove the entire mic from the pocket in a hurry, but it’s quick and simple to access the element and switch that out. Worth the price.”
“A great, comfortable & discreet option for talent wearing IEMs that prefer not to clip onto a belt or may want a more secure solution. In addition, almost a must have for filming sports/fitness content.”
“I’ve been an actor in live theatre for most of my life. I’ve always hated the bulky mic pack belts that give you that weird hump at your waistline. This solves that issue. Fits between the shoulder blades and is very lightweight.”
“A great, comfortable & discreet option for talent wearing IEMs that prefer not to clip onto a belt or may want a more secure solution.In addition, almost a must have for filming sports/fitness content. Will hold a transmitter pack in place very reliably no matter the body movement, whilst also being very comfortable for talent.Will even have use when micing up an actor wearing a crop top or similar costume that wouldn't allow for a usual transmitter placement on the waist.”
“I have purchased and used many Ursa products before, primarily using the pouches to attach packs to clothing. However, I have found that when attaching them to women's bras, they can sometimes be uncomfortable for the wearer. The back strap, on the other hand, securely holds the pack in place, reducing any noticeable bulge through clothing and giving the talent more confidence that the transmitters will stay securely attached. Although the packaging describes them as ideal for sports and live events, I have successfully used the back strap in scripted drama where traditional straps and”
“I’ve been an actor in live theatre for most of my life. I’ve always hated the bulky mic pack belts that give you that weird hump at your waistline. This solves that issue. Fits between the shoulder blades and is very lightweight. I’ll never go back to the old mic pack belts.It’s a bit tricky to remove the entire mic from the pocket in a hurry, but it’s quick and simple to access the element and switch that out. Worth the price.”
“A great, comfortable & discreet option for talent wearing IEMs that prefer not to clip onto a belt or may want a more secure solution. In addition, almost a must have for filming sports/fitness content.”
“I’ve been an actor in live theatre for most of my life. I’ve always hated the bulky mic pack belts that give you that weird hump at your waistline. This solves that issue. Fits between the shoulder blades and is very lightweight.”
URSA Straps Size Chart
Find the perfect strap size.
FAQs
Can this strap hold any wireless pack?
Yes — it’s designed to be compatible with a wide range of wireless transmitters and receiver packs from major brands, as long as the pouch size fits your unit’s dimensions.
Can I mount the transmitter upside down?
Yes — you can rig the transmitter with the aerial either facing up or down based on the desired orientation or RF considerations.
Which size should I choose?
Measure chest circumference at the widest point (around armpits). Choose Small, Medium, or Large based on the ranges in the Size Guide.
Will this work under costumes?
Yes — its low profile and centre-back position makes it easy to conceal under clothing, costumes, or wardrobe layers.
Are our Straps machine washable?
Yes — URSA straps are machine washable (recommended at 40–60 °C) and can be dried on low heat or hang‑dried.
What is your refund policy?
We have a ‘no quibble’ policy for refunds at URSA. If you are unhappy we will do everything we can to replace, fix or refund. For more details on returns please visit this page: Refund Policy
What are the Shipping Costs?
All URSA products are shipped from our base in the United Kingdom. If you spend over £50 for UK, 75€ for Europe, 150$ for USA on your order we will provide a free shipping option. For international shipping we use Royal Mail International Tracked, FedEx Regional Economy & FedEx International Priority among others depending on your location. For more information please check out our Shipping Policy
Looking For Alternative Rigging?
Quick Tips for Washing Your URSA Straps
Washing Instructions
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Connect gripper on straps when washing.
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Use a 40°c short wash – hang to air dry or low heat tumble dry.
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Keep straps and accessories sterile with URSA Zipper Cases
URSA Straps use certified OEKO-TEX hypoallergenic fabric and gripper.
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Testing the URSA Back Strap with Juan from B3hind The Boom
The URSA Back Strap
Tight Crop Top, Jean Shorts, 360 One Shot
Trying on the URSA Back Strap
URSA Back Strap - Tested at the Basketball Court

























































