How I can know my goggles size ?
21876
goggles dont come in sizes but in styles. Its wathever feel more conmfortable to you, the adjustment is done thru the strap. If you are talking about prescription it is usually what your glasses prescription is if its different on both eyes go with the lowest prescription. otherwise you will feel disoriented.
21877
They are adult size with different nose pieces to make a more custom size. If you mean correction strength ask your eye doctor. My son is nearsighted, he needs a negative correction I got him -2.0
371400
There is a measurement scale on the website it will tell you what size you need
195895
I took a chance and got the medium for my 6 and 8 year old. They fit well. My 8 year old might need the next size up next year. For now they fit fine. Hope that helps! Froggles are our favorite goggles ever.
71402
I purchased these last year and they are great! i recommend upgrading the memory card as it fills up quick!. As far as the size, I'd say they are standard adult goggles. I wore the 1 size fits all Scotts before this and they fit about the same.
1684407
Style of glasses and size - I can't tell you exactly, but visit a store where there is a display, hold your glasses against the display and you will find the recommended size/style for your prescription glasses.
54052
They fit nicely over my prescription eyeglasses. Mine are about 55 mm, but they cover them nicely without pushing them into my face. The only issue I've found with the goggles is that they are just a little too big to comfortably fit with my half-helmet. I like to have my helmet pushed down fairly low, so if I'm wearing the goggles I usually go helmetless or with the smaller skidlid.
771628
measure scope optic with tape measure go to butler creek web sight down load size chart and pick what size you need based on your measurments
625928
I found a Size and Specification Chart at: http://www.glipoolproducts.com/product.asp?ProdID=19Hope this helps.
1531680
Size 45 and 10. The 45 fits but I recommend a belt of electrical tape around the objective tube to make it perfect. 10 for the eyepiece is good to go!
1953998
Inside diameter of extender is about 1.5". Measure the diameter of the tube with the eyepiece set screws. If it is about 1.5" you are all set. The extender has to slide over your eyepiece and clamp in the same area where your eyepiece set screws are.
664680
With a tape measure. That is obvious. Then you find the sizing chart which is usually on the web page with the hat. dont forget to scroll down because you will see sizing charts for pants shirts shoes etc. You can also wrap a string around your head and mark it with tape or a pen then roll it out and measure it flat with a ruler. If you can't find a sizing chart then go to another web site that has a sizing chart.
282298
I do not know what 'cyl' and 'axis' measurements are, but, here is what we did:1. when ordering Speedo goggles, we got the +/- number, from our opthomologist.2. when ordering the ProMate snorkeling mask, we selected the the color and then selected the appropriate eye-adjustment (my son is nearsighted) from the "size" pull-down menu on the ProMate scuba options.3. My 13 year-old son loves the mask and was our family underwater photographer in Cozumel.
726033
I measured the width of my skull by placing my forehand on a ruler, then putting my head between my hands. It is difficult to take an accurate measurement. I kept getting different numbers. My best guess is my skull is 6 inches wide. The sunglasses fit perfectly. They are snug, but not tight. They are supposed to be snug. If your skull is 0.25 inches wider than mine, I would not recommend the sunglasses.
434652
Click on the "Product Detail" It tells you how to determine what size you need.
207292
I did the same thing. Just take a ruler and measure. Then go check the different available sizes (not only the one of this item). usually you can then tell if you are closer to that one or another size.
1208841
Take a flexible measuring tape and measure around the palm of your hand, just inside the web of your thumb. That's how I did it and it fit perfectly.
302928
you need to messure your head circumference to know your helmet size. use this tablehttp://www.upnorthsports.com/Sites/upnorth/Include/HelmetSizingChart.tml#bell