Reliable Marmot quality at a sensible price. A great choice for cold weather use! The word Eco in this products name points to the recycled materials used as well as the lack of PFC. - Men's Regular size: for users up to 183 cm - Surface material: 20 d ripstop made of recycled polyester - Liner material: 20 d polyester taffeta - Insulated with 1238 grams of HL-ElixR Eco fiber, made of recycled material - 3D hood - Anatomic foot box for great comfort - Draft tube at zipper - Package includes both storage and stuff sack - Inner measurements: - Length 206 cm - Shoulders 157.5 cm - Hips 145 cm - Foot box 119.5 cm The choice of "right" or "left" points to the side on which the zipper is. Most right-handed users want their zipper to be on the left and vice versa.