Check out the Asp's vestibule and you'll see where we got the name: from the front, the vestibule poles give it the appearance of a pit viper, just like the Asp of ancient Egypt. The vestibule poles dramatically increase usable space while you're coming, going, or sorting gear. Pitching the tent is a breeze, with the easy-to-use Quick Pitch Swivel Hub, the poles are pre-threaded through it, so you simply unfurl the poles and the tent body pulls up to the poles with our new RCT Swift Clips. The additional vestibule poles increase usable space and the double-slider zipper track in the vestibule means you can pitch it like an awning with trekking poles, or enter and exit while sheltered from wind or blowing rain. Reverse Combi Technology increases interior space, while the same feature-rich set of details make the Asp comfortable, efficient, and durable
Tent Apex Series Technology
Color Coded Webbing
Guides pole placement for speed and ease of set-up
Allows for quick orientation of rainfly set-up (color-coded on stake loops and on rainfly)
Constructed of durable, lightweight nylon
Dye-Free Optic White Canopy
Optic white canopies transmit light more effectively to give a brighter and more pleasant environment for long hours inside tent
Sierra Designs produces the Optic White Canopy™ without the use of chemical dyes
Quick Pitch Swivel Hub with H-Clip
The Quick Pitch Swivel Hub is updated with an increased angle of rotation, which helps reduce the possibility of pitching errors and aids in the speed of the pitch
The tent body features the new H-Clip, which easily connects to the bottom of the hub to tension the peak of the tent 
Swift Clips
A Sierra Designs innovation that allows the tent to be staked out before attaching the body to the pole structure
Computer Aided Design
A Sierra Designs system of using Computer Aided Design to make technically superior tents
Allows us to design tents that have a uniform distribution of stress
Clip-Locs
Dynamically locks poles at their intersection
Adds 60% to the tent's strength
Patented and exclusive to Sierra Designs 
Lightweight Fly Material
40-denier, 1.94oz/ High-Tenacity Nylon with a 246 thread count in a Rip-stop weave
Silicone coating provides additional lightweight, waterproofness and UV protection
1500mm waterproof Polyurethane under coating allows for seam taping and is durable and waterproof
100% waterproof to 80 PSI 
UL Stake Loops and Vestibule Stake Out Tensioners
Lighter than webbing stake out loops
Made from 3mm, reflective, cord and color coded to the fly to ease set up
The ultralight line locks are small and compact yet cinch down fast and tight 
DAC® Featherlite NSL Poles
Thicker diameter poles with a thinner wall increases strength and saves weight
Expanded insert combined with a large diameter pole creates a stronger connection point between pole sections
The best strength-to-weight ratio of any tent pole available today
Unique joining insert allows for a cleaner, smoother transition in Reverse Combi Technology™ (RCT)
DAC® has greatly reduced the use of phosphoric and nitric acid in the anodizing process (cleaner manufacturing makes for a cleaner environment)
Reverse Combi Technology
An award winning variable pole diameter system creates close to 50% more livable space
Thicker diameter pole sections are used in the center where strength and stability are needed most
Thinner diameter pre-bent pole sections are used on the ends, creating steeper walls for more livable space than a typical X-tent 
Reflective Door Binding Tape
By adding wide, reflective binding around the doors, our 4 Season tents provide extreme reflectivity in your head lamps during low visibility conditions
Locking Pole Tips
Keeps pole tips locked in grommet for faster, easier set up
Extended pole tips can be found on all 4-Season tents as well as the Tengu 3 and Tengu 2
A Sierra Designs innovation
SuperSeal FloorCombines benefits of catenary and bathtub floors
Raised, taped, perimeter seam provides guaranteed waterproofness
Maintains a tighter pitch with a better wind line to prevent flapping
Tent Guard with Ultra Fresh
We begin using Tent Guard with Ultra Fresh in 2004 (a Sierra Designs exclusive at the time!) and with great success. Applied as part of the PU coating to our rain flies, floors and footprints, Tent Guard extends the life of a tent by thwarting mold, mildew and fungus. Particularly on extended trips or in damp climates, Tent Guard protects a tent if it is packed or stored temporarily while wet — another bit of piece of mind for your customers.
Specifications:
Trail Weight 5 lbs 0 oz
Fastpack Weight 3 lbs 9 oz
Packed Weight 5 lbs 8 oz
Packed Size 20" x 6"
Number of Doors 2
Interior Area 34 sq. ft.
Vestibule Area 16.5 + 3 sq. ft.
Peak Height 40.5"
Floor Material 70D Nylon Taffeta, 1800mm
Body Material 40D Nylon Rip Stop, 1500mm
Fly Material 40D HT Nylon Rip Stop PU/Silicon, 1500mm
Number of Poles 2 + 2 ridge poles
Poles DAC Featherlite NSL, 9.6mm / 9.0mm