not sure what you are asking…i cannot really remember all the cons & pros of strobel v. board v. combination construction, but i think a strobel type construction is the most flexible and uses materials more efficiently as the other constructions have the upper material wrap over the board…i think board lasting is good when a shoe is toe lasted???
In my experience, the only advantage of board lasting is that the overall shape of the product tends to be tighter and more controlled you might also get less midsole wrap… it depends what your project priorities are. It is comfort and light weight, strobal is the way to go. You can also try California construction, which is more expensive, but comfortable and maintains shape nicely.
haha, i had someone explain california construction to me at work once, but i still didnt really understand it. that was a few years ago now, and it was in womens dress shoes, so maybe now i will be able to grasp it better.
Typically if you are using a RB cupsole you want cemented (board lasted). A RB cupsole like in a boot normally has an eggcrate design inside which you would feel if strobel lasted. Strobel or slip lasted (so many terms, I know) are normally used for athletic shoes that require more flex and lightweight as well as sometimes more stretch to the upper (ie. mesh as opposed to leather).
California construction is less common but used also for athletic shoes. In California construction, the seam is down the middle of the bottom as opposed to the edges of the lasting board. There is also combination lasting which uses strobel in the heel and california in the toe or vice versa.
There are also several other type, FYI such as stitch down, and board lasting in combination with a type of cement being injected during toe and heel lasting as commonly used in soccer shoes.
I actually had a shoe a while ago where I felt the eggcrate through the insole, but usually it’s not noticeable if you put in the right layers. That one shoe also had some type of grid in the forefoot, like the eggcrate in the back but a different pattern and lower. This was much more annoying than the eggcrate in the back because of the weight distribution. I’m not sure if this is normal. I have seen it several times after but I have also seen unit sole with a smooth forefoot and only eggcrate in the back.
An eggcrate inside a RB cupsole is used to remove weight and thickness. If the thickness of the sole/sidewall is more than the normal 4mm it is used. If there is one in the back and not the front it means the last has a high heel stack height and the forefoot outsole thickness is small.
Only time I’ve ever seen strobel with a cupsole that works OK is for kids where you want the flex, and the surface area and kid’s weight is so small they don’t feel the eggcrate. see below (kid’s shoe) -
What do you think about eggcrate on vulcanized construction? I’ve also felt the eggcrate through the insole here once and noticed the eggcrate contours showing through the insole board after some weeks of wear and weight on it. What insole board would prevent this from happening? Texon?
Also, on a different note, why do italian cemented shoes always seem so much heavier and have a stiffer shank than chinese cemented (i.e. designer sneakers). Is this just pure prefence of the factories or brands? Tradition? Or perhaps it’s because of the overall chunkier design.