EN-tested Mountain Hardwear Lamina 35°F sleeping bag uses an exclusive insulation designed to provide high loft, durability, softness and compressibility. It's ideal for damp, cold weather. FILL. Polyester fibers. WEIGHT. Long - Left Zip: 2 lbs. 7 oz. Regular - Left Zip: 2 lbs. 4 oz. Regular - Right Zip: 2 lbs. 4 oz. TEMPERATURE RATING (F). 35 degrees (F)

• European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags
• Lightweight Thermic Micro insulation is manufactured to produce a consistent, dense sheet of insulation that eliminates cold spots
• Made from a combination of hollow and solid staple fibers, the fill has excellent loft retention while also being durable, soft and compressible
• Slightly wide cut gives you extra room to move inside the bag; Comfort mummy cut efficiently maximizes warmth without constriction
• Welding stabilizes the fill without sewing through the bag, eliminating moisture penetration points and maximizing loft
• Insulation is laid in a wave shape, enhancing loft and increasing thermal efficiency; offset welds increase stability and loft
• Insulated draft tube extends to bottom of bag to eliminate cold spots
• Face gasket and ergonomic draft collar seal out cold air
• Full-length, 2-way zipper with locking slider is backed by wide, antisnag binding tape
• Insulated zipper gusset seals in heat at base of zipper
• Comfort footbox is shaped to allow feet to rest naturally; shape preserves loft and allows insulation to drape close to feet for more warmth
• Interior zippered pocket at shoulder is great for stowing small necessities such as your watch or lip balm, alleviating middle-of-the-night fumbling
• Comes with nylon compression stuff sack and mesh storage bag