This series are the MEGA packs of our ultralights - High Volume - High Altitude. UnLtd is any volume above a 42" circumference.

S-Sarc UnLtd+1; $989.00, S-Sarc UmLtd+2; $1,025.00, S-Sarc +3 $1,065.00, +4 $1,195, +5 $1249.00......... Higher volume top pockets, Kangaroos, Water/Wand pockets, and stiffer frames, taller hip-belts, characterize the UnLtd S-Sarcs. +6.....also available.

Circumference profile of + One: 43 / 43/ 43, profile of +2: 44 / 44 / 44......+3....

With all the new fabrics hitting the market, add-on prices for UHMWPE is in flux. We tend to dye these fabrics and that adds dollars, but the prices are now much lower than during our 'Spectra laminated to DCF' days. DCF is 'CubenFiber' or Non-Woven Dyneema. Base price includes all regular fabrics and Spectra 'Grid' fabrics, and a Challenge Fabric 800 bottom and rim.

44" UnLtd (+2)

Applications/Use:
Light Packing, medium packing, heavy packing, or Alpine climbing, Expedition use - this is a versatile pack.

Extended Volume with optional extension skirt or extra long roll top sleeve: 6,000+ cuin. Volumes vary with height & circumference. Click on 44 UnLtd Full Spectra S-Sarc below and above. Blue and yellow below is a +1

The UnLtd S-Sarc at right is a +2 with a full extension skirt, oversize kangaroo pocket, and oversize hip-pack top with bladder holder, which doubles as an extra clothing holder, 2 water bottle pockets, hipbelt pocket, and at 7,000 cuin weighs only 5.5 lbs. In different versions of 'summit mode' it is much lighter. The oversize hip-pack alone weighs 13 oz., but is far lighter with 100X Challenge. Removing the the hip-pack puts it in role-top mode and it's 4 lbs 11 oz.......and fully capable of 70 lb. loads. The 4lb. 11 oz, weight even includes heavy duty stays so the sky is the limit when it comes to making these a bit lighter. Below: A partially dyed Challenge+2 below. Click image to enlarge.

Choose which parts you want made from Challenge Fabrics. A Challenge Fabric Kangaroo Pocket is $49.00. Pack below is an UnLtd +1. Click images for blowup.

Larger volume packs are available for Larger Mountains and larger people! One way to bump the volume of one of these is with a set of our Super cargo pockets or Utility Pocket. The lightest way to increase volume is with additions to the pack circumference.

Above: with EXP shovel pocket, hip-pack top, belt pouch, attached. Click photo for blow-up.

Below: Detail of bottom end of shovel utility pocket. It will expand as much as needed drawsting draws inside of pocket through water drain holes. Click photo for Challenge 800 bottom detail also.

Below: Our latest hipbelt/frame connector strap that locks with a cam buckle. Previous models were fitted with a velcro strap. Releasing the cam has the effect of providing a frame adjustment toward the shorter side by about 3/4" to 1" depending on the load, and also allows a light load to flex more. The belt can shift upward in relation to the frame when the strap is released. Prior models were fit longer to compensate for belt shift. Q-Bayonet does the same thing on newest packs. Cam strap adds stability. It's primary function is to connect the hip-belt to the frame stays. Other straps visible are excess strap length of the connecting straps folded over. The stainless-steel buckles underneath that hold the straps and belt are not visible here.

Similar UnLtd below but with a sewn Kangaroo pocket and 2 layer summit flap. Removable ski guard panels are mounted on sides.

Above: Full pack with full frame in - Challenge bottom and harness. Below: Rear side

Above: Rear view. This example has a Challenge bottom and covered Kangaroo pocket - Kangaroo closes with bungy cord as well. Flap can be set out of the way inside pocker as well. Below: Harness side. Ski-guard panels shown on side. Challenge shoulder pads also.

Above: A taller lumbar pad, external removable back padding, and larger volume are some of the features that make this different than the standard S-Sarc. Below: The frame extension pulled and the pack shortened to shoulder level and the lower main frame. Notice that the upper stabilizer straps have been removed and taken out of the Bypass tubes on the front of the shoulder pads. They can be left on the pack as well.

Below: Bayos out - rear view.

Below: In lightest rolltop mode with lid and lidstraps removed. This actual pack, as is, weighs 3 lbs. 7 oz