Amazon EssentialsMen's Packable Lightweight Water-Resistant Puffer Jacket (Available in Big & Tall)

I normally wear medium clothes ,what size would buyers recommend please!👍👍

Does anyone know the difference between xxl and xxl plus please?

Does this coat have interior pockets? If so, how many?

When wearing the jacket, is the zip-slider on the left hand side of the zip? On the one i have just received, the slider is on the right and feels odd