02-05-2025
This is it!
The strap is comfortable, lightweight, and very easy to adjust. It fits well and has held up through some tough workouts.
Effero Silicone Sports Strap
Effero Silicone Sports Strap
Regular price
£19.99 GBP
Regular price
£39.99 GBP
Sale price
£19.99 GBP
Save £20.00
Unit price
per
In Stock - Fast Shipping With Royal Mail
Size Guide
At Astra Straps, all our straps have specific and clear sizes indicated. Please check the sizing guide below before ordering. If you are still unsure, you may contact us here.
1. How do I know my wrist size?
Simply use a flexible measuring tape to wrap around your wrist and record the measurement on the tape that overlaps the zero end of the tape OR just grab any string/paper strips to do the same, then lay the string on a ruler to get your accurate wrist size.
In most cases, knowing your wrist size/length will be sufficient. Check your wrist size against the size of the strap that you wish to purchase on the individual product details page.
From there, you can select and purchase our watch straps: Small (S), Large (L) or Free Size.
2. What is the watch band width / watch lug measurement?
In certain cases, knowing your wrist size alone may not be sufficient. In such a scenario, you will need the watches' band width size, also know as the watch lug width size.
Place the watch with the watch face facing up. Take the measurement of the distance between the lugs (where the watch strap fits).
For Apple Watches you have the choice between 38MM, 40MM, 42MM & 44MM, you can enter your watch model number into a search engine to find what size your watch uses.
With these two pieces of measurements, you are now ready to grab your strap!
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100 Days Guarantee
The Effero Silicone Sports Strap is made to move, whether you're chasing a personal best or just running through your daily to-do list.
With a soft-touch feel, breathable, ridged texture, and secure pin-and-tuck closure, it delivers the kind of lightweight comfort that stays in place and out of your way.
Once it’s on, you can forget about adjusting, slipping, or overheating, and you can just get on with whatever comes next.
Features:
- Soft Silicone Feel provides a smooth, flexible texture that stays comfortable against your skin all day long.
- Lightweight And Supportive to offer everyday comfort without adding bulk or pressure to your wrist.
- Pin-And-Tuck Closure gives you a clean, secure fit that adjusts easily and stays in place during movement.
- Ridged Ventilation Texture improves airflow and helps prevent heat buildup during workouts or long wear.
- Fully Adjustable Fit allows you to find the perfect size for your wrist with minimal effort.
- Waterproof And Sweat-Resistant so it performs through runs, rain, and everything in between.
- Built For Daily Wear with durable silicone that resists wear, fading, and stretching over time.
- Available In 14 Vibrant Colours so you can match your Apple Watch to your personal style every day.
Details & Compatibility:
-
Fits Wrist Size:
-
38MM / 40MM / 41MM / 42MM-S10: 130mm - 200mm (5.1" - 7.9")
- 42MM / 44MM / 45MM / 46MM / 49MM: 140mm - 210mm (5.5" - 8.3")
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38MM / 40MM / 41MM / 42MM-S10: 130mm - 200mm (5.1" - 7.9")
- Compatible with: Apple Watch Series 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, SE, SE2, Ultra and Ultra 2
Shipping and returns
Shipping and returns
Shipping
We offer FREE Tracked shipping on all orders over £40! For orders under £40, we charge £3.95. 📦
We process orders between Monday and Friday. Please note that we require 2 to 3 working days on average to fulfill your order before dispatching it. Rest-assured we are doing everything in our power to get your order to you as soon as possible!
Once your order is dispatched, estimated delivery time is between 5 to 10 business days. Please consider any holidays or global events that might impact delivery times.
Returns
We offer hassle-free returns to our nearest dispatch centre. To start a return just contact our support team at support@astrastraps.co.uk and we will make the process easy and effortless.
Please Note: Due to delays caused by huge pressure on international and local shipping companies, orders may be delayed for arrival.
Our guarantee
Our guarantee
Yup! that's right, we know you'll love our straps and wristbands, which is why we offer a Risk-Free 100 Day Guarantee on all of them. This protects you from product faults, defects and lost in post shipments.
If you're not satisfied with your product simply contact our customer care team and we'll do whatever it takes to make sure you are 100% satisfied with your purchase. (see terms and conditions for more info).
*Free Tracked Shipping on all orders above £40!
Size guide
Size guide
At Astra Straps, all our straps have specific and clear sizes indicated. Please check the sizing guide below before ordering. If you are still unsure, you may contact us here.
1. How do I know my wrist size?
Simply use a flexible measuring tape to wrap around your wrist and record the measurement on the tape that overlaps the zero end of the tape OR just grab any string/paper strips to do the same, then lay the string on a ruler to get your accurate wrist size.
In most cases, knowing your wrist size/length will be sufficient. Check your wrist size against the size of the strap that you wish to purchase on the individual product details page.
From there, you can select and purchase our watch straps: Small (S), Large (L) or Free Size.
2. What is the watch band width / watch lug measurement?
In certain cases, knowing your wrist size alone may not be sufficient. In such a scenario, you will need the watches' band width size, also know as the watch lug width size.
Place the watch with the watch face facing up. Take the measurement of the distance between the lugs (where the watch strap fits).
For Apple Watches you have the choice between 38MM, 40MM, 42MM & 44MM, you can enter your watch model number into a search engine to find what size your watch uses.
With these two pieces of measurements, you are now ready to grab your strap!
Ask a question
Ask a question
We have sold to more than
100,000+ customers
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“I recently got the Astra Apple Watch band and am very impressed with its quality and stunning design. Right from the packaging, it was clear this band was made with great care. The premium-grade silicone is soft against the skin, comfortable for all day wear, and durable enough for an active lifestyle. Im thrilled with my purchase."
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“Don't waste money on expensive Apple bands. This one is stylish, fits well, and is excellently made. You can get several of these for the price of one official band."
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“Ive had many Apple watch bands over the years, and this is the best, coolest, and most comfortable one yet. It makes the watch look extremely upscale. A friend paid much more for the same band elsewhere and couldn't believe my price. Highly recommended. Love!"
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“Amazing quality, very flexible and not stiff like other straps. Doesn't have that cheap band smell. Highly recommend, and great to have the option to match the strap color with my style."
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“I was looking for a band thats not only exceptionally comfy but also stylish and durable. These bands tick all those boxes. I appreciate the bands design where it tucks in neatly. My original band caught on everything, but this one has a much smoother design. I love it!"
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“Astra Straps' customer service is top-notch. I had a question about sizing, and they responded promptly with helpful guidance. It's refreshing to see a company that values its customers."
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“Astra Straps has been a game-changer for my watch collection! Their bands are not only stylish but incredibly durable. I've swapped out all my old bands for Astra and couldn't be happier."
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“The watch bands fit perfectly around my wrist as there are plenty of holes to adjust to my wrist size. The colors are very nice. The feel of the band is smooth. The way the band clasps is a plus as it is very secure on my wrist."
