Make waves together with the Randy Cow Sharks – Purple Father & Son Matching Swim Shorts with Waterproof Pocket. Featuring our bold shark pattern and available in both adult and kids sizes, these matching father and son swim shorts are perfect for beach days, holidays and family adventures by the water.
Made from premium 4-way stretch recycled performance fabric, these swim shorts offer excellent freedom of movement and quick-drying comfort. With no mesh lining, no irritating inner labels, durable triple-stitched seams and our signature waterproof pocket, they’re designed for swimming, playing and enjoying the summer together.
Made from 90% Recycled Polyester & 10% Spandex.
Mild Process at 30ºC
Do not expose to temperatures over 60ºC
Do not Bleach
Do not Iron
Do not Dry Clean
Do not Tumble Dry
Do not Spot Clean
We sell and ship worldwide, are are happy to send our products to anywhere that has a letterbox.
We will dispatch your order within 1 working day (Mon - Friday) from London, England, and will post out the same day for orders placed before 12pm GMT. Delivery times may vary. By standard, UK Mail is delivered by Royal Mail on a 48 hr service. International Mail can take 3-5 working days, or longer depending on where you lay your hat. See our Shipping page for more info.
All sizes are in inches and openings (waist and leg) are circumferences (from relaxed to stretched at the waist). Leg openings are rounded to the nearest half inch:
XS
S
M
L
XL
XXL
XXXL
Waist:
28" - 33"
30" - 34"
33" - 37"
36" - 40"
39" - 44"
41" - 46"
43" - 48"
Total Length:
15"
15.5"
15.5"
15.5"
16"
16.5"
18"
Outseam:
13"
13.5"
13.5"
14"
15"
15.5"
16.5"
Inseam:
4"
4"
4"
4.5"
4.5"
5"
6.5"
Leg:
22"
23"
23.5"
24.5"
25"
26"
28"
100% WATERPROOF POCKET
Safe and Dry down to 30m
NO MESH OR LABELS
We have removed the mesh lining, and all inner labels for pure comfort
QUICK DRYING
With a loop on the rear to hang & aid in the drying process.
TRIPLE STITCHED SEAMS
Extra durability for all those pool lunges and Dad dancing.
PLANET FRIENDLY
Made from 90% recycled polyester and 10% spandex.
WHY YOU'LL LOVE THESE
Every detail of these Randy Cow swim shorts is designed for comfort, performance and effortless summer style. Here’s why people love them:
Award-winning waterproof pocket technology
No mesh lining - replaced with an ultra-soft compression liner
Premium 4-way stretch fabric for full freedom of movement
Lightweight quick-dry material
Made using 90% recycled performance fabric
No inner labels = no irritations or itches
Luxury navy drawstring with RC branded rubber tips
Rear hanging loop to aid faster drying
Matching Father & Son Shark Swim Shorts with Waterproof Pocket
The Randy Cow Sharks – Purple Father & Son Matching Swim Shorts with Waterproof Pocket are designed for families who love to share their summer style while enjoying practical innovation. Featuring our bold shark pattern, these swim shorts allow dads and sons to match their beachwear while benefiting from our signature waterproof pocket technology.
Crafted from lightweight 4-way stretch recycled performance fabric, these swim shorts provide excellent comfort both in and out of the water. Unlike traditional swimwear, Randy Cow shorts are designed without irritating mesh lining, instead using a smooth compression liner for improved comfort and support.
With triple-stitched seams for durability, quick-dry material and no internal labels to cause irritation, these swim shorts are built for active beach days and lasting summer memories.
Whether you're enjoying a family holiday, heading to the pool or exploring the coast together, Randy Cow father and son matching swim shorts with waterproof pocket combine comfort, practicality and unforgettable family style.
FAQS
The Waterproof Pocket is made using a flexible solution with rare earth magnets (which are both phone and credit card safe) and a carbon neutral TPU. The pocket is self closing and used three bars for a triple, and 100% safe, seal.
No. All Randy Cow swim shorts are completely mesh-free and instead use a soft compression lining for superior comfort.
Yes. The lightweight recycled fabric dries quickly, and the rear hanging loop helps them dry even faster after swimming.
No. We remove all inner labels and instead use a soft signature cow-print waistband to prevent irritation.
• Tailored modern fit • Mid-thigh length • Elasticated waistband with adjustable drawstring • Supportive built-in compression liner • Designed for comfort in and out of the water
True to size.
UK orders placed before 12pm Monday to Friday are dispatched same day. Delivery typically within 1-3 business days, next day options available.
International shipping 2-14 business days depending on destination. See our Shipping page for full details.
Return within 30 days fo delivery for a Refund
Return within 60 days of delivery for an Exchange
Customers are responsible for their own return shipping costs
Items must be in original condition and unworn
Refunds will be processed within 7 business days after we receive the return at RCHQ
Original shipping charges are non-refundable
We use all major carriers, and local courier partners. Free Shipping is available. Check out the costs and Free Shipping thresholds on our Shipping rates page
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Store owner replied:
Thank you for the honest review Antonia. For the pocket to be 100% Waterproof, it is always going to be a little noticeable. Luckily we do offer the same great shorts without the pocket too - they are literally the best on the market 🫶
My only concern is giving a 3 to 5-year-old who's just learning to read something with the label reading Randy cow. It May need some scissors taken to it once I know they fit!
Store owner replied:
Thanks Susan for the feedback. We promise the name is far cheekier than it is rude. If a little label trim is required, we won’t take it personally - as long as the shorts pass the comfort and fit test, we’ll call that a win 🐮 ✂️
Store owner replied:
Thanks John - we aim to please!
The best swim shorts. My boys have worn them most days this Australian summer. Study shorts, haven't lost their colours and maintain shape. The water proof pocket is such a bonus especially with the teenager! Higly recommend.
Store owner replied:
Thank you for your support Sue! We're always happy to help 🥰
This Brand is different. I genuinely believe that they care. The customer service was second to none. The products are superb. The packaging was brilliant. My only gripe - they don’t do more products yet! I’m a fan and grateful for finding them! 👏
Store owner replied:
We aim to please! So thank you for the excellent words and feedback! This is what we do it for! ❤️
Good responsiveness, helpful, after care - great product - happy to support British products. All round 5 stars, looking forward to testing these in a few days on holiday!
Mike P (London)
Customer service was excellent & my queries were answered immediately, with a friendly & clear reply.
The waterproof pocket sold these trunks to me, but the funky designs were almost equally as much of a selling point! It's great to have some fun designs to choose from. Size was a perfect fit and my man can't wait to try them out when it warms up.
These are much more expensive than I'd ever pay for trunks but I was lucky there was a sale on and I knew my husband would love them.
I'm also really happy to be supporting a UK business & especially one very local to me, thanks Rabdy Cow! Very cool & memorable name, BTW!
Store owner replied:
This makes us all warm inside Sean ❤️ Thanks for being a legend!
What a fabulous company to order from. Extremely helpful when I orders the wrong size and their communication was excellent. My husband loves his clever shorts and will now be able to dive from the boat to the bar without getting his money wet! So the beers are on him!!
Store owner replied:
These are the moments we work for Stella 😍 Thanks for such awesome words! We strive to make the experience as awesome as Sofa Sundays with Pizzas and Movies ❤️ Just let us know when Mr C is at the bar and we will take a work trip to test that debit card out 😎 🍻
Thank you but unfortunately the wrong size was sent. It was supposed to be a Christmas present for my husband as we have travelled to Australia for Christmas. He was most disappointed to open up his present and find they were too small and when I checked the label realised that they were not what I ordered! Please help!
Store owner replied:
Hi Stella, We are sorry you had a disappointing xmas present opening! We have checked and I am afraid you did actually order the XS size with us 😬, but we have emailed you directly in hope we can help get you a bigger pair asap! Hopefully we can help out! 🤞
Incredible product, incredible experience and everyone LOVES the patterns!!
Sooooo much cooler than other brands!!
Store owner replied:
Thanks for the awesome words Zoe! 😎
Got the XL shorts and fit perfect, I’m a size 38W and the elastic is stretchy and I feel comfortable wearing by them. Waterproof pocket is a genius idea, I wish I thought of this, no more taking a portable safe to the beach and locking it around the Sun lounger, it’s very secure and certainly won’t be falling out when I swim as it folds over like those waterproof belts you get, I’ve tried these too and it looks a bit ridiculous on the beach.
My only negative about the shorts is the mesh pant lining inside, I always avoid shorts with this as it feels uncomfortable when laying on a sunlounger and I’m forever “adjusting” the shorts lol. I actually took the shorts to the dry cleaners and had them remove this lining so I can wear boxer shorts underneath. Maybe your company can look to remove this lining on future shorts and make a kind of boxer short style lining inside a bit like the new Lacoste swim shorts have, they are super comfortable compared to this mesh pant liking you guys have.
Store owner replied:
Hey Richard! Thanks for the great words and feedback - we will definitely look into these options, so make sure you follow us on our socials for updates 🐮
My husband and son LOVE them! Great company, great product and great service!
Could not recommend them more!
I finally received my sharks! I am ecstatic because the shorts are beautiful and most importantly it is 100% from recycled bottles and with a waterproof pocket (incredible!), which is strangely not so common. Great initiative guys! Keep up the great work! I am pretty sure that Greece will love you! Thank you once again!
Store owner replied:
Thanks Stevie 😍 And we LOVE LOVE LOVE you too ✌��
I bought matching pairs for my boys and they absolutely love them. They’re comfy and fit so well - which is usually not the case for kids trunks as I fine they come up baggy and disproportionate. The shark design and colour is lovely. And I ABSOLUTELY LOVED the anti- bullying message in the Kids Club Rules. My boys felt very special when I read them to them. Well done all round Randy Cow
Store owner replied:
Thanks for the great review Andrea! We're glad they tick all the boxes and that the kid's are officially part of the club now ✌🏻
My shorts arrived today, across the world, through the pandemic. Yay! They fit perfectly and are of excellent quality. And they look great. Sadly it’s winbter over here so no swimming for a few months.
Store owner replied:
Thanks for the review Michael - and for rep'ing us down under 😎 Once the waters warm up and you get to test drive them properly, we look forward to seeing some pics of you rocking them out! P.S - your winter is probably still warmer than our Summer! 😂
All aspects were great and the trunks are quality �
Store owner replied:
That's great to hear Mark! 😍 We look forward to seeing you rocking them out! ✌🏻
The swimming trunks are fabulous, high quality design and material. Strongly recommended if you want to combine great design, quality and practicality. Will certainly buy from randycow again soon.
Store owner replied:
Great news and kind words Barbara! We're stoked they didn't disappoint and we're pleased you're a firm member of the herd now 😍
For years I've been using waterproof bags for my phone/valuables, but they were difficult to wear and use, with fiddly locking flaps... Until now! This is a game-changer! I can now protect my phone and look totally awesome and cool at the same time! Thank You RC, you just made my world a better place! Keep it up!
Store owner replied:
Looking cool is high on our agenda Darren - we're glad to hear we've made things better for you. Feel free to send a cold 6-pack to the office to help you feel better 😍
Really comfortable, very good quality,value for money ,the pocket is an excellant idea it takes away the worry of leaving money etc hidden whilst swimming, plus great for the enviroment recycled plastic , all in all a great product
Store owner replied:
Cheers John! No excuses not to buy the beers at the beach anymore! 🍻
Quality chaps
Nervous going straight in with my phone but worked a treat
Mates on stag do very impressed with the concept
Dragons den would be all over this
Store owner replied:
Cheers George! Glad you got the full benefit out of the shorts: Jealous mates, Waterproof Pocket - you probably had girls oogling you from all angles too! The Dragons would no doubt love this, but it's all ours 😎
Quality chaps
Nervous going straight in with my phone but worked a treat
Mates on stag do very impressed with the concept
Dragons den would be all over this �
Store owner replied:
Cheers Greg, we're glad you love them as much as we do!
The sizing was perfect and the shorts fit very well. I have to say the waterproof pocket is even cooler when you wear them! You hardly tell it’s there and doesn’t stop the shorts from being comfortable
Store owner replied:
We're all about the fit Andrew, and we're glad you agree! Cool is the correct word here, well done 👏
From start to finish the whole experience was superb, great website, delivered in time and the product was excellent. Great quality, look lovely and fit well.
Store owner replied:
...we're Dancing on the ceiling! Great to hear Kev, we're made up you were happy with the experience. Hopefully the beaches'll re-open soon and we can see you in them!
The bag, box and little attention to details when my shorts arrived made this a very good experience. I am also very happy with the shorts - very comfortable and the pocket is great for keeping my belongings safe and dry.
Store owner replied:
Cheers to you John! We super proud of the packaging - we wanted the whole experience to be a special one!
Where do I start? The outstanding customer service? The exquisite quality of these shorts? The revolutionary waterproof pocket? The use of recycled materials to manufacture these excellent fitting shorts?
I don’t know, but I do know that these guys are onto a winner with their awesome swim shorts in great colours and cool prints!
Reuse, reduce, recycle ♻ - these guys live and breathe it. There’s simply no better way to do your bit for the environment, and at the same time keep your valuables dry in the water.
By the way, a few years ago I did accidentally take my phone for a swim once, needless to say it did not survive - but that wouldn’t have happened with this clever design feature of a waterproof pocket!
I love my ne randy cow shorts, and can’t recommend them highly enough.
Store owner replied:
G'day Elmar! What a great few words - we knew you'd love them! We're super pleased you're fighting our corner down there, and we're thrilled to have you in the herd!
I ordered a pair of the Sharks on my phone at lunch, then the next day they were on my door step. The packaging, marketing material and little bits were so good and made receiving these shorts a great experience. I tried them on and immediately could feel the quality of the material and the fit. They felt lightweight and hugged my perfectly. I am very impressed and will definitely be getting another pair in the summer, probably the Octopus ones! Thank you. Simon.
Store owner replied:
We're always aiming to get these bad boys out as soon as is possible, no one likes to wait days for their goods! And we're glad they fit you perfectly - looking forward to seeing you back in the Summer for the Octopus ones, they're an awesome Summer colour!
I ordered the Shark Shorts in a Large on my phone around lunchtime, the next day they were on my doorstep! Quirky, smart packaging - I could tell the product was good already. The design was amazing and the fit even better, so comfortable. I can't wait to try these out at the beach and use the waterproof pocket rather than hide my belongings under a towel! Great job all round!
Store owner replied:
Cheers Terry! Yep, we are proud of the packaging and super pleased the delivery times worked out. Send us some pics of you rocking the Sharks at the beach!
I was lucky enough to get a pair of these as an early Xmas present for a holiday to the Philippines! They’re absolutely perfect for days spent in the water - they look great, they’re comfortable, and they keep your stuff dry in the special pocket!
We spent the day snorkelling, jumping on and off a boat and there was never a drop of water in the pocket! I tried it out with some money first, then when that stayed dry I felt confident enough to have my phone in there!
Great product guys, keep it up!