Strenfit X500 High-Pressure Dropstitch Inflatable 1-Seat Kayak

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Product plus point
The rigid kayak that fits in a backpack, would you believe it?We innovate!Powerful, light, robust and easy to inflate, the strenfit kayak takes you on long distance trips all year round!
Users reviews
3.99 / 5 154 ratings

User benefits

2 cleverly placed cargo areas to transport up to 125 kg, you included:)
Glide performance
Great sensations!The V-shaped hull limits friction on the water.
Easy assembly / dismantling
Inflate in 10 minutes using a double-action hand pump to 1.5 PSI (1.03 bar)
Sitting comfort
A very dense foam seat suitable for your full day touring.
Anatomic design
Adjust the foot rests to your size in the cockpit area whenever you want.
The coaming lets you use your spray deck so that you can paddle in all seasons
Reinforcements in the areas exposed to friction, leaving you free to paddle.
Quick drying
The kayak is waterproof.Simply dry it with a towel.

Technical card

Main fabric : 95.0% Polyéthylène (PE), Main fabric : 5.0% Polyester (PES)
Approved by
Standard ISO 6185-1:corresponds to the international inflatable kayak standard.
"Our kayak is tested and approved by our internal and external ambassadors. Some examples? Nicolas travelled the Dordogne with this kayak:131 KM in 1 day François went down the Danube from Ulm in Germany to Sulina in Romania on the Black Sea:2 600 km! Find their stories and our videos on our site dedicated to all things kayak:Check out our itiwit website.
2 years
Download user manual link


Storage advice
Dry, deflate, fold up.Store your kayak in its bag in a cool, dry place.
Use restriction
Designed for one person up to 1 meter 90.


How big is it?How heavy is it?
"When the kayak is inflated: > length:380 cm > width:64 cm When stored in its bag: > height:94 cm > width:50 cm > thickness:27 cm > full weight:18 kg (16 kayak Dimensions of the bag) + 2 hatch storage: 60 cm
An innovation, and a patent pending!
The initial idea?Design our dream kayak: a high-performance inflatable kayak that you can take everywhere with your backpack, in short:Freedom!To do that, 30 months of design and development, 7 prototypes - which we call "monsters" here - were necessary.The main challenge:to add rigidity, performance to an inflatable kayak.And so we have patented the unique cutting and assembly of the materials used.
Why a rigid inflatable kayak?
"We listened to the kayakers:""I have a good level in kayaking and I want an inflatable kayak that has the same performance as a rigid kayak"", ""I want to go kayaking using public transport."", "" Inflatable kayaks are nice but I want a kayak that is goes fast!"" It was therefore necessary to design an easily transportable and efficient kayak, in short innovative."
Marc Ronet, naval architect tells us about the adventure with DECATHLON:
"My work involved defining the overall geometry of the kayak, its general balance.When the Itiwit team called me, I was surprised but very interested.And it was also thanks to our common passion for kayaking.We were able to share our respective knowledge.It's been a great experience!"
Why the name "Kayak X500 DropStitch"?
""Dropstitch"" is a material.Two layers of PVC are connected by thousands of nylon threads.When inflated to high pressure, these threads tighten and create a rigid volume, which prevents the kayak from loosing its shape. This is what makes our inflatable kayak extremely rigid but easy to store in a backpack once deflated."
How was the design worked?
A real teamwork with the engineer, the architect and the product manager.Emmanuelle designed the product based on its technical constraints.We can speak of functional lines.The dark grey corresponds to the paddling area, light grey for the loading area and orange for visibility.
How to inflate and mount the kayak?
"1. 1. Inflate the main chamber (floor), then the intermediate chambers (walls), followed by the small chambers (arches).All the volumes are inflated to 10 PSI max (0.7 bar). 2. You can insert the foot-rests on the flexible guides, push them inside the kayak, and adjust to your leg length with the buckle. 3. 3. Position the seat by fitting it onto the shims provided. 4. Position the backrests under the coaming. We recommend the HP Itiwit twin-action hand pump (8387655), not supplied."
How to disassemble and deflate the kayak?
"You'll see it's quite simple! 1. Make sure the folding surface is clean. 2. Remove the seat. 3. Remove the foot rests 4.Deflate the kayak by removing the cap and pressing the valve.(Leave the valve in the open position for air to escape) 5.Tuck in the hatch and start folding lengthways."
How to fold it up to put it in the bag?
"1. We recommend placing the canvas of the bridge inside the fold. 2. Fold the keel over its entire length.This fold ensures that the width of the kayak is the same as that of the bag. 3. Fold each end towards the inside of the kayak and line up the ends with the Itiwit logo. 4. Slot the seat in the last fold of the kayak and finish expelling air from the kayak by pressing on it. 5. Finishing step: strap the kayak (a good strap makes it easier to put it in the bag)."
What if the kayak is pierced?
"It would take something sharp to make that happen. If so, the kayak is composed of 5 independent "air chambers". 1 or 2 of punctures? The kayak floats enough to make it back to the shore safely. To preserve the life expectancy of your kayak, we advise you to avoid contact with oyster shells and sharp reefs."
The team offers their tips for your comfort ...
"Olivier takes care of the stock at Itiwit.Like the whole team, he is passionate about kayaking.His advice:""To make the most of it, really take the time to sit in the middle to balance yourself, to adjust your foot rests.Once you are comfortable, off you go."" Nico is a product engineer, his thing is to always leave with dry clothes in a small waterproof bag.You can place it in the front of the kayak for easy access."
What does the Kayak bag contain?
"The kit comprises: - the backpack - the kayak - the seat - the foot rests - a repair kit It does not contain a spray deck.The kayak is compatible with the Itiwit spray deck code:8543915."
Directions for use.
We recommend that you practise with a buoyancy vest.

Users reviews

3.99 / 5 154 ratings
127 users recommended this product

At Decathlon, reviews are reliable.

  • Man
    50-59 years old
    23 September 2019
    Use since 2 to 8 weeks
    That review has been deposited on this product version
    Flawed Gem - Very user weight sensitive.

    Brilliant design and concept and really is awesome in terms of ease of set up and drying/deflation etc. Cuts through the water beautifully and looks great. However - it is very unforgiving in stability terms. I'm 75kg and at full pressure (10psi) it is very much sat on (not in) the water. I looked at the ITIWIT official images online and noticed it always looks lower in the water and has a gentle 'curve' vertically bow to stern when shown in use in those imsges. At my weight and 10psi mine was very high in the water and ruler flat front to back. So - I dropped pressures all round and that has significantly helped stability. it sits much more in the water than it did. I have a question for ITIWIT therefore. Did you design it this way deliberately? I can see it would be ok for around 100kg at 10psi but for lighter loads and users it's crazy high and tippy at that pressure? I would also ask you to develop an inflatable backrest as this would help immensely. It's brilliantly conceived and executed in the main but needs more primary stability and a more comfortable seat to perfect it. I'd be really keen to hear the design teams feedback on my pressure/user weight observation and the official images I mention online please? (From the ITIWIT adventure pages).

  • Man
    30-39 years old
    23 September 2019
    Use since 1 week or less
    That review has been deposited on this product version
    Exactly as expected... And maybe even better ;)

    I bought it yesterday, decided to take the weekend off (I am a bartender) and just, with no experience what so ever in kayaking loaded it with a tent, inflatable mattress, sleeping bag, a chair, food for 2 days, some clothes, some basic camping gears, and 7 liter of water (I even kept my wallet and passport with me, just to be sure that if something go wrong... Well it will be big time). I have to admit that I had to empty some water from the boat after 1h... I won't go to long about the first hour because I want to leave a positive review. But well, once you get the balance thing ok, your back and you hips are getting more relax (adjusting the foot support right helps a lot) I love everything about this kayak now, just crossed Iskar lake (that's in Bulgaria) on a straight line without any feeling of instability ( yes, you have to keep paddling). I just want to say thank you to the team at Itiwit. Keep on the good work
    Thomas, a happy customer :)

  • Man
    40-49 years old
    04 June 2019
    Use since 1 week or less
    That review has been deposited on this product version
    Great concept but too unstable to be practical

    I have three other (non-inflatable) kayaks and years of experience in various types of kayak but I tried this and found it to be quite unstable and difficult to keep upright in very calm sea conditions. I was accompanying an open water swimmer but could not spare a moment to be of service to him because I didn't dare take my hands off the paddle. Back in shallow water I tried some strong support strokes and rolling, neither of which resulted in success.
    I have a feeling it would be more stable if it had another 100kg of ballast in it but I'm sure that is not the intention with this concept. Looking at the boat from the side, it sits very high out of the water and although the seat position is nice and low (and comfortable) this isn't enough to give a feeling of security. Evidently the hull shape also contributes to the instability but I won't try to analyse that in detail. There is also very little in the way of solid decking to brace your knees against which is a disadvantage for this type of kayak. I would not want to use this on anything but still calm water and, as I bought it for short sea trips, I decided it was not for me.
    I would give it one star because I think it is a little unsafe for the vast majority of paddlers but I have given a second star for the shear ambition decathlon have in trying to pioneer a boat like this. The build quality is great, I just think the concept needs more development.
    I can't fault Decathlon's customer service either, they have refunded me with no quibbles, just as advertised.