There are no standard sizes for clothing, which is why each brand has their own unique cut and fit. Please do not presume you are the same size between brands for a similar product. If you have a base layer that fits correctly, then use it as a template for these measurements.  

Chest - Measure the full circumference of your chest just below the armpits
Hem - Measure the full circumference at the top of your hips
Back Drop - Measure from the back of your neck to the base of your spine
Arm Length - Measure from the end of your shoulder to your wrist

Our mid layers will contour to most body shapes when worn thanks to the fabrics in-built stretch. You should wear them close fitting but not so they are restrictive. Wearing baggy or ill fitting mid layers will lead to the loss of heat and a reduction in their wicking properties.

These Factor 2 Plus mid layers are designed to be worn over the top of our base layers but they can be worn directly next to the skin if required. Sizes for both Sub Zero base layers and mid layers are comparable - so if you wear a Factor 1 plus base layer in large, then you should require a Sub Zero Factor 2 Plus mid layer in the same size and vice versa. However, this may not work out for everybody so please consult the size chart below. 

Please be aware that these measurements are taken from the garments unstretched, apart from the 'TO FIT CHEST' column, that indicates the range of fit. They are applicable to our Factor 2 Plus long sleeve mid layers in round neck and zip turtle styles.

The table below shows the garment measurements for our Factor 2 Plus Mid layers. There is a tolerance of +/- 5mm.

cm in cm in cm in cm in
XSMALL 79-84 31-33 82 32 64 25 64 25
SMALL 86-92 34-36 90 35 66 26 66 26
MEDIUM 94-99 37-39 96 38 69 27 67 26.5
LARGE 102-107 40-42 104 41 71 28 68 27
XLARGE 109-112 43-44 112 44 74 29 69 27
XXLARGE 112-114 44-45 120 47 76 30 70 28


The table below shows the actual garment weights per size for each of the different styles of Factor 2 Plus mid layer tops we manufacture. There is a tolerance of +/- 20g. 

g oz g oz
XSMALL 225 7.9 255 9.0
SMALL 240 8.5 270 9.5
MEDIUM 275 9.7 305 10.8
LARGE 305 10.8 330 11.6
XLARGE 325 11.5 360 12.7
XXLARGE 350 12.4 385 13.6