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Product Description


Soft, durable and comfortable, possibly the best dive strap you’ll ever buy! Your strap comes complete with buckle and keepers, if you like to have additional spare keepers or buckles, please check the ISOfrane spare parts product category

A modern dive strap with the look and feel of the original ISOfrane straps of the 1960s – the ISOfrane 1968 strap

The RS buckle is a forged all stainless steel buckle with a screw pin, the name reflects the design and purpose of the design, the RS buckle resembles the original buckle on all isofrane straps from 1960s, made of solid stainless, the construction of the buckle features an added security feature, that holds the strap in place even if the straps comes loose out of the keepers.


Attention, all orders ship via Fedex priority to all destinations worldwide, shipping rates vary


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Product Reviews

Showing reviews 1-10 of 39 | Next

  1. Expensive, but well worth it. 5 Star Review

    Posted by on 5th Oct 2016

    This strap exudes a feeling of top quality & thoroughness of design. The rubber itself is soft & flexible while feeling tough & durable. The 'ladder" design allows the skin to breath for added comfort. The keepers can be slightly difficult to engage, but do not wonder once aligned.
    Easily recommended.......

  2. The only strap that belongs on s serious dive watch!!!!!!!!!!!!!!!!!!!!!!!!!! 5 Star Review

    Posted by on 19th Sep 2016

    This is my 25-30 ISOFRANE strap and I think I have said all I can say about hoe GREAT GREAT these straps are! I personally like to go for the traditional black strap in either 22mm or 20mm with rthe brushes RS BUCKLE! VERY NOSTALGIC!!! But you cant go wrong with a beautiful nato green or blue or the eye catching beautiful orange! I personally like the feel of the RS BUCKLE more than the IN BUCKLE BUT BOTH ARE FANTASTIC! Trust me forget about price and buy one and I promise you will never change to another strap!!!

  3. amazing quality 5 Star Review

    Posted by on 15th Sep 2016

    I was a bit skeptical when ordering, even though I've only heard good things....well they are all true! Incredible fit, quality, the band doesn't slip at all, really chamged the look of my watch and will wear it more more now as i didnt like the strap it came with.

  4. THE ONLY "REAL" DIVE STRAP IN THE WORLD! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 5 Star Review

    Posted by on 1st Sep 2016

    HI! What more can I say ,its an ISOFRANE! I have purchased more ISOFRANES than I can count! LOVE THEM ALL! I usually but not allways prefer the black strap with the R/S BUCKLE (either dlc (or) brushed) and the customer service and super fast shipping is second to none! I would like to say a special hello to Ben overseas and Andy over here in the states! and a special thanks to everyone else at AQUADIVE & ISOFRANE & SYNCHRON WATCH GROUP! ISOFRANE THE ONLY STRAP A DIVE WATCH SHOULD HAVE ON! PERIOD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  5. Well worth the price. 5 Star Review

    Posted by on 3rd Jun 2016

    The Isofrane strap is gently flexible, offering a perfect fit, yet literally feels 'cool' over the skin on a hot day. Odor does not build up where watch meets wrist. The buckle as well as the two floating keepers stay immovably secure. The buckles deserve particular mention for their superb quality: the black DLC matches my Tegimented Sinn far better than an PVD hardware.

    I personally often have issues with straps being too small for my 19cm wrist but the Isofrane offers more than enough room should my wrist grow from taking up boxing again.

    I always feel forced to order custom straps because of the poor quality and sizing of IEM straps, but the Isofrane offers me a cheaper and more comfortable alternative. The only reason I will continue to buy custom straps is for fashion sense--in all practicality, the Isofrane is a better choice.


    Posted by on 17th May 2016

    This is my 28th or so ISOFRANE strap what more can I say it is the most comfortable best looking longest lasting strap for a dive watch in the world! I really like the RS/DLC BUCKLE(S) because the RS BUCKLE lays so flat and comfy and the DLC COATING which will never scratch blends in so nice with any color strap especially the black color!Ben overseas is a GREAT GUY at aquadive and isofrane and Andy in the usa is also a GREAT GREAT GUY! and AQUADIVE &ISOFRANE customer service is second to none! GREAT JOB GUYS!!!

  7. I will never use another watch strap! 5 Star Review

    Posted by on 6th May 2016

    Fells comfortabel, fixes the watch just in the right position of my wrist.

  8. Isofrane is the greatest rubber strap i ever own. 5 Star Review

    Posted by on 18th Apr 2016

    It's very very soft touching and flexible rubber. I got 3 straps now and plan to own more. One thing I have to say about IN buckle, its flat tongue is not z shape like RS buckle. That pushes strap surface out from wrist curve : (
    But overall is marvelous rubber strap, I love it.

  9. absolutely love these straps 5 Star Review

    Posted by on 13th Apr 2016

    is there any chance of a 24mm OD Green coming out? by far the best strap purchase(s) I've made.

  10. BEST RUBBER DIVE STRAP IN THE WORLD-nothing else comes close! 5 Star Review

    Posted by on 12th Apr 2016

    Hi!@-Well I jusr received about my 30th ISOFRANE strap. I usuall get the 22mm black RS/DLC buckle but I just received a couple of days ago a nato(green) 22mm RS/DLC strap and I must say I love the color of the green maybe more than the black? what I ntice is the green is a very slight bit stiffer than the black which I like for a thicker diver to hold the watch more centered-but you cant go wrong with either color-those are my (2) primary color choices for now on!one thing I wish was not changed was the tang on the RS/DLC BUCKLE does not sit flush in the recessed cutout like before-I liked it when the tang sat flush in the recessed cutout in the buckle -it gave for a much cleaner look and you did not have the sharp corner of the tang raised up-after have so many isofranes I really do not see or understand the need for the change? BUT THE RUBBER STRAP CONTINUES AND WILL ALWAYS BE THE BEST DIVE STRAP MADE IN THE WORLD-I knoiw many companies have tried to copy the design and material ,but i beleive no one has come close to the fit and feel of an ISOFRANE!!! Thanks ISOFRANE

Showing reviews 1-10 of 39 | Next