This cotton/polyester blended tech tee is a go-to piece no matter the season or activity. Features: Cotton/polyester tech tee blend. Custom Spyder seasonal graphics. 221344_966. Materials: 85% Polyester / 15% Cotton. About Spyder: Founded in 1978 in Boulder Colorado, Spyder is one of the world’s most recognizable and credible outdoor sportswear brands. Focused on enhancing the ski experience both on and off the mountain, Spyder prides itself on its advanced technical composition and style.