This silkweight polyester/polypropylene Polartec® Power Dry® base layer, sourced and made entirely in the US, has been designed specifically to work in concert with a Kokatat dry suit or top to keep paddlers warm and comfortable. The polypropylene inner knit is hydrophobic and aids in rapid moisture transport, keeping the user dryer and has a low thermal conductivity which translates to reduced heat loss. Women's specific patterning.