Alps Mountaineering Blue Springs 35 Sleeping Bag (Synthetic) Details

The Alps Mountaineering Blue Springs series sleeping bags are made with MicroX+ insulation. MicroX+ Insulation consists of multiple denier staple-length fibers that have a siliconized finish for maximum insulation, loft, and compactness. It is an ultra lightweight insulation that has a tremendous weight-to-warmth ratio. The Blue Springs uses a 2-layer offset construction, sometimes called a "bag within a bag." The contoured hood and mummy shape helps seal up your warmth and keep you warmer. If you choose the 35° option, you will get a second zipper that allows you to zip the bag "half open" on each side, to allow venting or sitting up, which is a neat feature. The Blue Springs is a great backpacking sleeping bag to take along on your hikes that won't take up all the space in your pack or weigh you down.


  • MicroX+ Double-Layer Offset
  • Multiple Sizes and Temperatures
  • #8 Separating Zippers
  • Insulated Zipper Baffle
  • 210T Nylon Ripstop Outer Fabric
  • 210T Polyester Liner
  • Compression Stuff Sack
  • Specs:
    Regular - 32 x 80 in / 81.3 x 203.2 cm
    Long - 34 x 86 in / 86.4 x 218.4 cm
    Wide - 36 x 84 in / 91.4 x 213.4 cm


Brand Alps Mountaineering
Weight 2 lb 11 oz / 1.22 kg (Reg)
Best Use Backpacking
Sleeping Bag Shape Mummy
Insulation Type Synthetic
Max User Height 5 ft 10 in (Regular), 6 ft 6 in (Long)
Shoulder Girth Not specified
Hip Girth Not specified
Foot Girth Not specified
Fill Weight 21 oz / 595 g
Insulation Type Synthetic Insulation
Lining Material 210T Polyester
Water Resistant? No
Temperature Rating 35°
Temperature Range 31° and Up
Shipping Estimate Estimated Shipping: Same Day Shipping! Mon. - Fri. if ordered by 12 pm MST


SKU 3500
Barcode # 703438470376
Shipping Weight 1.2500kg
Shipping Width 0.420m
Shipping Height 0.350m
Shipping Length 0.350m
Shipping Cubic 0.051450000m3