Sierra Designs - Alpha CD 3

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Alpha CD 3

Sierra Designs

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This freestanding, three-person tent easily converts from a 4-season mountaineering shelter to a 3-season backpacking oasis.


  • Features one large vestibule, two removable Stash Doors™ and DAC Featherlite® SL poles
  • Converts to 3-season use with removable ceiling and door panels and removable pole sections
  • DAC Featherlite SL poles are stronger and weigh less due to extruded construction and the elimination of insert connections
  • Removable stash doors can be left at home to save weight and space; they can also be stashed in internal mesh pockets
  • Steep sidewalls shed snow and rain, making this tent a reliable choice for mountaineering and backpacking
  • Sewn-in floor stays taut to provide maximum usable space; heavy-duty polyurethane coating and factory-taped main seam keep out water
  • Integral vestibule features a clear vinyl window with taped seams and provides gear storage space protected from the elements
  • Full-coverage rainfly features a vent to allow airflow, even in bad weather
  • Clip-Locs™ at intersecting poles sections increase structural strength by 60% without losing flexibility or adding weight
  • Huge mesh ceiling and door panels provide excellent ventilation and allow stargazing in clear weather
  • Exclusive Inter-Locs attach rainfly guy points to tent canopy, creating an integrated guy system that increases the tent's strength
  • Non-wicking stake loops and fly attachments eliminate the possibility of wicking water into tent
  • Reflective guy-out loops enhance low-light visibility; noiseless zipper pulls eliminate that annoying jingle when it's windy
  • Interior mesh pockets are waterproof against the sidewalls; your stuff stays dry and visible
  • Includes stuff sacks, stakes and guylines
  • Fastpack option lets you leave the tent body behind and create an ultralight shelter using only the footprint (sold separately), poles and rainfly
  • Average minimum weight specification is based on tent, rainfly and poles only

  • Fastpack 4-season weight: 5 lbs. 3 oz.
    Fastpack 3-season weight: 3 lbs. 13 oz