to balance the calcium to phosphorous ratio
while allowing any moisture to wick through its outer membrane
but it's also designed with practicality in mind
the original "warmth without bulk" Thinsulate insulation offers almost one-and-one-half times the warmth of down
Slightly thinner material at the sides and under the arms further enhances breath-ability
Helly Hansen Mens Tech Graphic T-Shirt 2.0 Size:XXL to balance the calcium toHelly Hansen Mens Tech Graphic T Shirt 2. 0 Designed for outdoor activities such as hiking or sailing, the Men's Helly Hansen Tech Graphic T Shirt 2. 0 is your go to garment for sunny, warm conditions. Offering UPF 50 sun protection, this T shirt is moisture wicking, quick drying, and its long sleeves provide added coverage against sun exposure. Available in: Grey Fog, Cobalt 2, Dark Mint To see more from Helly Hansen, visit the Helly Hansen Collection