Strenuus Soft Silicone Sports Band - Astra Straps Strenuus Soft Silicone Sports Band - Astra Straps
Strenuus Soft Silicone Sports Band - Astra Straps Strenuus Soft Silicone Sports Band - Astra Straps
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Band - Astra Straps
Strenuus Soft Silicone Sports Strap
Strenuus Soft Silicone Sports Band - Astra Straps
Latest

Strenuus Soft Silicone Sports Strap

Strenuus Soft Silicone Sports Strap

Regular price £19.99 GBP
Regular price £39.99 GBP Sale price £19.99 GBP Save £20.00

In Stock - Fast Shipping With Royal Mail

Colour: Black
Strap Width: 42MM / 44MM / 45MM / 46MM / 49MM

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Buy 2 & Save 5%
£37.98 £39.98
Buy 3 & Save 10% Popular
£53.97 £59.97
Buy 4 & Save 15% Best value
£67.97 £79.96
  • Free Shipping Orders £40+
  • Easy Returns
  • 100 Days Guarantee

Some straps try too hard to look tough. The Strenuus just is. It has a rugged, no-nonsense look that fits whether you are at work, in the gym, or just prefer gear that does not look delicate.

Dirt, sweat, and grime wipe off easily, so it stays looking good without babying it. If you need a strap that can handle your day while still being stylish, the Strenuus is perfect for you.

Features:

  • Soft Silicone Construction provides durability and comfort for active lifestyles
  • Rugged Aesthetic delivers a bold, masculine look that stands out
  • Adjustable Buckle Closure allows a secure, customizable fit for any wrist size
  • Lightweight Build keeps your watch comfortable throughout long days
  • Easy-Clean Material wipes down quickly after workouts or dirty jobs
  • Solid Colours and Camouflage Options let you choose a look that fits your style
  • Sweat-Resistant Surface handles intense activity without discomfort
  • Flexible Feel moves naturally with your wrist without stiffness
  • Quick Installation connects to your Apple Watch lugs without tools
  • Available in 10 Colours and Camouflage Patterns

Details & Compatibility:

  • Fits Wrist Size:
    • 140mm - 220mm (5.5" - 8.65")
  • Compatible with: Apple Watch Series 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, SE, SE 2, SE 3, Ultra, Ultra 2, and Ultra 3

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

The Astra Standard
Engineered for quality. Protected by our guarantee.
Premium Build
Rigorous QC checks ensure every strap meets the highest tier of durability.
100-Days Guarantee
Full coverage against defects, Faults. 
Insured Shipping
Free tracked shipping over £40. We cover any loss in transit.

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

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Strenuus Soft Silicone Sports Band - Astra Straps
Strenuus Soft Silicone Sports Band - Astra Straps

Questions? We've Got Answers! ⭐

Real talk about your new favorite watch band

Will this actually fit my watch?

Absolutely! Whether you’re rocking the original Series 1 or the latest model, we’ve got you covered. Just check the size on the back of your watch (if you're not sure), and we'll handle the rest. It’s that easy.

What makes Astra Straps different?

Great question! At Astra Straps, we don’t just make bands – we craft them.

Every single band is hand-finished to ensure the highest quality and attention to detail. We’re all about combining top-notch materials with unique designs that reflect your personal style.

Plus, we test every band for comfort and durability, so you can count on a strap that’s as strong as it is stylish. When you choose Astra Straps, you’re not just getting a band – you’re getting a piece of wearable art.

Is it really comfortable, or just good-looking?

Why settle for one when you can have both? Our bands are designed to look amazing and feel just as great.

We’ve obsessed over comfort, so you don’t have to. No weird pinching or “I need to take this off” moments – just a band that feels as good as it looks.

Will it stand up to my crazy life?

We’ve put our bands through the wringer because we know you don’t have time to baby your watch.

Whether you're hitting the gym, caught in the rain, or dealing with your most accident-prone friend, these bands are built to last. Bring on the hustle!

How do I pick the right size?

Most people use a tape measure (or even just a string) to wrap around their wrist, then add half an inch. But don’t stress – most of our bands are super adjustable, so unless your wrists are tiny or extra large, the standard size should work just fine. Still not sure? Reach out to us, we’re here to help!

What if I don’t love it?

We get it – sometimes things just don’t work out. If you’re not in love within 100 days, send it back, no questions asked. We’ll refund you, no drama. We want you to have a band you absolutely love.

When will it get here?

We’re all about speed. Most orders ship within 1-2 days, and you can expect it to arrive shortly after.

Plus, if you spend over £40, shipping is on us. Because let’s be real, no one wants to pay extra for shipping.

Do I need to buy anything else?

Nope! We believe in keeping things simple. Everything you need is in the box. No sneaky extra fees or “must-have” connectors. Just open it, snap it on, and you’re good to go.

How do I keep it looking fresh?

Super easy! Silicone bands just need a quick rinse with soap and water. Leather ones? Just a gentle wipe down.

Metal ones can be cleaned with a soft cloth. And don’t worry – we’ll send you a full care guide, but these bands are pretty low maintenance.

Customers praised this silicone sports strap for exceptional comfort and durability. "Wore it from morning meetings straight into evening workout. No discomfort at all," one shopper noted. The strap features easy installation, secure fit, and sweat-resistant material that "doesn't get sticky or gross." Popular for workouts, hiking, and daily wear.

  • 5 stars: 34 (92%)
  • 4 stars: 2 (5%)
  • 3 stars: 1 (3%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
H
Harvey Loxfield
Strong and reliable

Feels like it'll last a long time. No complaints so far.

O
Oliver Kingsbury
Bright yellow is fun

It's loud but in a good way. Makes me smile when I look at it.

I
Isaac Bramwell
Comfortable for long shifts

I work 12 hour shifts and this strap never digs into my wrist.

N
Nathaniel Crowhurst
Solid value

Didn't want to spend crazy money. This one hits the sweet spot.

E
Elliot Fairburn
No weird smell

Some silicone straps smell weird after sweating. This one doesn't.

R
Reuben Hartleigh
Soft but strong

The silicone feels smooth but doesn't feel weak at all.

C
Callum Pemberley
Great gift for my boyfriend

Got one for my boyfriend and he said it's way more comfortable than his original strap.

L
Louis Bexley
Love the colour options

Might grab another colour soon because they all look good.

L
Leo Carrington
Simple but does the job

No fancy gimmicks. Just a reliable sport strap that works.

F
Finley Ashcombe
Stays tight all day

From work to gym to errands. Never had to readjust.

H
Hugo Whitfield
Nice upgrade

Makes my Apple Watch feel brand new again.

S
Sebastian Denholm
Great for cardio days

Used it for spin class and rowing. Stayed tight the entire time.

D
Daniel Thornbury
Not too bulky

I hate chunky sport straps. This one sits flat and clean on the wrist.

B
Benjamin Southwell
Doesn't irritate my skin

I have sensitive skin and cheap silicone usually bothers me. This one doesn't.

M
Maxwell Coleridge
Green one looks sick

Got the green version and it gives outdoorsy vibes. Matches my camo gear.

O
Oscar Wetherall
Perfect for hiking trips

Took it on a weekend trail hike and it held up through sweat and dirt. Just rinsed it after.

J
Jack Alderstone
Lightweight but durable

It doesn't feel heavy on the wrist but it's definitely strong. No flimsy vibes.

C
Charlie Fenworth
Clean and minimal

The black one is simple but sharp. Looks good at work and at the gym.

W
William Cressingham
My husstrap keeps borrowing it

Bought it for myself but now my husstrap keeps asking to use it for his workouts. Guess I need another one.

T
Thomas Radbourne
Comfortable all day

Wore it from morning meetings straight into evening workout. No discomfort at all.

S
Samuel Hawkridge
Good grip texture

The subtle texture actually helps. Doesn't feel slippery when I adjust it.

A
Arthur Henshaw
Fits my smaller wrist perfectly

I usually struggle with sport straps being too long but this one fits nicely without extra flap hanging.

H
Henry Stratfield
Sweat proof for real

I sweat a LOT during HIIT and this strap doesn't get sticky or gross. Dries fast too.

G
George Mallinson
Super easy to install

Clicked in within seconds. Didn't need tools or YouTube. Love when things are simple.

O
Oliver Whitcombe
Way better than stock strap

Honestly this feels softer and more flexible than the one that came with my watch. Worth it.

F
Freddie Tyndhurst
Red strap goes hard

The red looks aggressive in a good way. I wear it to the gym and it matches my gear perfectly.

M
Matthew Kirkham
Perfect for daily wear

Not just for workouts. I wear it casually too and it still looks clean.

J
Joseph Wainford
White looks fresh

The white strap looks super clean. Just wipe it down and it's good.

A
Alexander Marwood
Feels secure

The buckle locks in properly. I never worry about it coming loose.

A
Archie Blackthorne
Actually impressed

Didn't expect much for the price but it feels solid and well made.

L
Lucas Penhaligon
Blue looks even better in person

Photos don't do the navy justice. It has this rich tone that looks premium.

J
James Hollingworth
Lowkey my favorite strap now

I rotate straps but this one is staying on my watch most days.

T
Theo Brackenridge
Holds up during long runs

Did a 10K with this strap and totally forgot about it. No irritation, no rubbing. Just stayed in place.

J
Jacob Tinsdale
Perfect everyday sporty vibe

It balances sporty and clean really well.

Why 100,000+ Customers Choose Astra Straps

390+ Styles. Premium quality. Prices that actually let you switch it up.

Endless

Style

Match every mood,
outfit, occasion

Premium

Materials

No cheap

plastic here

Built

To Last

Survives workouts, adventures, life

Perfect

Fit

Comfortable

from day one

100 Day

Warranty

We’ve got you covered for 100 days

  • “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."

  • “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."

  • “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!"

  • “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."

  • “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!"

  • “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."

  • “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."

  • “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."