Berserker was a kind of warriors in Norse mythology. They could shift into a state of wild frenzy when becoming angry, which enabled them to engage the enemy without armor. This was also the origin of in word “Berserker” in English. Fit is close to true to size, smaller is suggested if in between sizes. 82% polyester, 18% spandex 38-40 UPF Fitted design Very soft four-way stretch fabric that stretches and recovers on the cross and lengthwise grains Comfortable longer body and sleeves Flatseam and coverstitch