How To Measure
For those of you who are completely unsure about what size to buy, never fear help is here!
So first of all lets start off with some terminology. There are two types of sizes provided here at Zen-oh-tee
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Size to fit - This is a guideline size, and not the actual size of the item of clothing you are looking at. It's usually made up of two numbers, so for example most of our men's T-shirts are listed as Size to fit, medium = 38"/40" This means that if your chest measurement falls in this range, this is probably the best suited size for you. The T-shirt itself will measure a little bigger to allow room for you to move freely, rather than it being skin tight.
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Measurement - This is the actual measurement of the item of clothing. This is best for when picking sizes for kids clothing if your child doesn't quite fit the normal age size guides, or if you have trouble being between sizes.
So, how to find out your chest measurement?
Grab yourself a fabric tape measure, if you don't have one, they are a good cheap investment for situations like the one you are in now ;)
Run the tape measure around your back and line it up at your front so you can see it.
Like in these images here of the lovely James.
So for example James here measures just over 37" in the chest. With small T-shirts recommended as 34"-36" (to fit) and mediums as 38"-40" (to fit) James takes a size medium so that it's not too tight.
Key things for measuring:
If you can, get someone else to measure for you.
Relax
Don't hold your breath
Don't suck your chest or belly in
Don't try to make that measurement smaller, you need this to be accurate so that you are comfortable. There's no point buying something that is too small :)
You want to be measuring just below the armpit. About nip height (lol) or some manufacturers recommend 5cm below the armpit seam.
For girls, you want to be measuring the widest point of your bust.