Our exclusive Extremalon (EXTRM) straps are similar to Hypalon, but less rubbery and more matte, with a fine-knurled surface texture — with the same durability, stretch resistance, and flexibility.
I discovered this material when I went in search of a replacement for our Navy Seal Zodiac reclaimed straps.
I don't like the bulk of convent...
Reviews
4.4
7 ratings
5
4
3
2
1
Disappointed. This thing is WAAAAAY WAY TOO SHORT !!!!
I have a 7.75" wrist, and it doesn't even reach the second keeper.
Really unacceptable. I'm left having a leather worker / friend fashion it into a 2-part strap so i can actually use it.
Come on! Err on the side of longer vs shorter.
Andrew · August 20, 2026
EXTRM Hypalon Synth Strap
Great strap, waterproof, grime proof, wish it was a bit longer but overall great strap for ever day use in the field or ocean. Well made, superb materials, excellent workmanship. This strap will outlast most people.
M
Michael · February 20, 2025
Near excelent
I always searched for a Hyplaon watch strap and while Redux says it is only "similar" this was the deal for me.
Nice titan buckles, cool design.
It is really thin compared to rubber alternatives which is great! On the other side it is also single pass so if you don't know its ruggedness it seems "flimsy". Would whish for a normal Nato design too.
I can't say sth. about the lifetime yet.
Why only 4 stars?
First it is really short. My arm is not big at all but most straps have a lot of cms left while here the end barely passes the 2 keepers.
second the buckle, the needle is not completely "closed" around the buckle due to the edgy design.
Both things are no deal-breakers but give an insecure feeling which torpedoes the "Extrm" tag in my opinion.