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There are even mesh panels under the arms to help with airflow, which really comes in handy if you are wearing a vest of some kind (be that a plate carrier, LBV or BCD/PFD) especially in a hot and or wet environment.
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Decked out with Kryptek patterning printed onto the right sleeve, and fitted with a broad swatch of loop-field on the left, the tan material with subdued ANF for the platypus skull filler make this a cool-guy shirt that does its job. The back is printed with shout-outs to the major lines Platatac works with.
I've put this shirt through some pretty strenuous work; it's my running shirt, my Tough Mudder shirt, I wore it jetski-safariing and snorkeling. I've found it to be light, warm when needed, cool when needed and certainly quick drying.
I really liked having a loop-field to attach items from my ever-growing patch collection.
If you have need of a slick, comfortable and hard-wearing body-hugging shirt, you should totally give the CUS a try. Coyote adventure tested!