Lacertus Rugged Silicone Sports Strap

Lacertus Rugged Silicone Sports Strap

Regular price £40.99 GBP
Regular price £91.99 GBP Sale price £40.99 GBP Save £51.00

In Stock - Fast Shipping With Royal Mail

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

Buy More and Save!

Buy 2 & Save 5%
£77.88 £81.98
Buy 3 & Save 10% Popular
£110.67 £122.97
Buy 4 & Save 15% Best value
£139.37 £163.96
  • Free Shipping Orders £40+
  • Easy Returns
  • 100 Days Guarantee

When your day takes you from high-speed training to weekend treks, the Lacertus Rugged Silicone Sports Strap is made to keep up.

Its one-piece design features a combination of premium silicone, TPU, nylon, and rugged metal accents that pair effortlessly with the Apple Watch Ultra.

Whether you are lifting, climbing, or simply staying in motion, Lacertus delivers a secure fit that feels built for anything.

Features:

  • Durable Silicone Construction provides dependable flexibility and strength for daily use and demanding conditions.
  • Reinforced With Metal and TPU for added structure and a high-performance feel that holds up through impact and wear.
  • Colour-Matched Metal Connectors complement the titanium Apple Watch Ultra finish with a seamless, cohesive look.
  • Secure Pin Buckle Closure keeps the band firmly fastened during high-motion activities.
  • Lightweight and Comfortable Fit ensures all-day wear without added bulk or discomfort.
  • Breathable Interior Design prevents sweat buildup to keep your wrist dry and cool throughout the day.
  • Ideal for Active Lifestyle whether you are in the gym, outdoors, or pushing through a packed schedule.
  • Tactical-Inspired Design adds bold presence to your Apple Watch without compromising comfort.
  • Available in 9 Colour Options so you can match your gear or create contrast with your case.

    Details & Compatibility:

    • Fits Wrist Size:
      • 140mm – 215mm (5.5" – 8.5")
    • 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

    View full details

    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 rugged silicone sports strap for its "super comfy" fit despite heavy-duty construction. The "solid buckle," durable build, and industrial aesthetic with matte finish impressed shoppers. Many noted it's "better than the original band" and perfect for active lifestyles. Some found it "bit chunky" but worth it for quality.

    • 5 stars: 103 (80%)
    • 4 stars: 18 (14%)
    • 3 stars: 7 (5%)
    • 2 stars: 0 (0%)
    • 1 star: 0 (0%)
    L
    Lola Farnley

    SuPer comfy for something so heavy-duty.

    H
    Hugo Blackthorn

    buckle’s SOLID. nothing flimsy here.

    E
    Elodie Bancroft

    Held up fine through mud and rain. no dramas.

    A
    Alfie Bannister

    Feels industrial in the best way.that hint of oRange? proper cool detail.

    R
    Reuben Montrose

    bit chunky, but worth it for the build.

    C
    Callum Bramble

    made for more than just errands.

    F
    Finnian Selhurst

    matte finish gives it a stealthy look.

    F
    Freya Templeton

    Snapped it on and knew it meant business.

    B
    Brodie Elwood

    Sits tight through training, no slippage whatsoever.

    I
    Isla Wicklow

    Doesn’t wobble or twist stays rock steady.

    J
    Jude Hollins

    tough but surprisingly flexible.

    H
    Harvey Marwood

    makes the watch look like a whole new gadget.

    H
    Hugo Carrington

    tAnK vibes.

    T
    Tristan Goldhawk

    stays locked, no matter what.

    C
    Caitlin Moorland

    Serious bit of kit, this one.

    C
    Cleo Turnley

    FIRM fit.

    S
    Sienna Redgate

    matches my trail shoes, weirdly satisfying.

    E
    Esme Rockwell

    definitely built for adventure days.

    T
    Tilly Westmore

    No squeak, no fuss. Just works.

    D
    Diego B
    Black Metal Band

    High quality luxury item, going to be hard to switch to other bands. Finally found my favorite! Feels good on the wrist, no issues so far. If youre thinking about buying it, BUY IT!

    J
    Joshua C.
    Best band on the market

    If youre looking for a comfortable yet durable Apple Watch band, this one should be at the top of your list.

    R
    Rick Marquez
    Fit my Apple Watch perfectly and very comfortable

    These bands from Astra straps are amazing! I got one for my Apple Watch. It fit perfectly and was easy to install. It is very comfortable, and I think it will get more comfortable after I wear it for a while. A good watchband.

    J
    Jessica
    Excellent for sensitivity to metal

    I was concerned that this would cause skin sensitivity as I have allergic reactions to metal. I was pleasantly surprised when I did my workout routine, sweated, and there was no itching, redness, or breakouts on my skin. Very happy with my purchase. Well made, sturdy, high quality.

    R
    Richard Lynch
    Better than the band the watch came with! Ultra 2

    Get this band if you have the new Ultra 2 titanium. It is a perfect match and is much better than any of the original bands. You will not be disappointed!

    B
    Bobby B
    Great looking watch band

    I love the band. It is so durable and I love the look. Its probably one of the most durable bands I have ever purchased, even Apple bands dont compare to this for the price.

    C
    Carrie R
    Very nice

    Nice watch band! Quality is great. Premium look

    M
    Mac Perez
    Great band

    Excellent quality, looks great. Will easily fit my large wrist.

    R
    Robert Boler
    Lightweight and chic.

    Striking, coordinated colors. Great buy for its price, will buy more.

    D
    Dustin Hoffmann
    I CAN'T SAY ENOUGH

    This I absolutely love. I plan to buy every color.

    S
    Steve Kneller
    Great Band

    This is a great band for the series 9. I have a lot of bands for watches, and this is definitely one of my top favorites now.

    J
    Jamie
    Love this band!

    Got this band for more than half the price of other brand name ones Ive seen. Glad I did. Fits perfectly and feels just as nice.

    T
    Thomas J.
    Nice!!

    Comfortable and easy to use and wear.

    M
    Mark B
    fancy

    Very nice looking and nice quality, easy to set up.

    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."