Ultralight Adventure Equipment Circuit SV 48 Rucksack

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Stripped back, durable and spacious, the new Circuit SV 48 brings big-mile comfort to those with minimalist kits dialled to perfection.

Ultralight Adventure Equipment says: 

You’ve asked, and we’ve delivered! The Circuit SV (Small Volume), is identical to our award winning Circuit backpack, but with a sleeker smaller volume. This super lightweight and reliable workhorse is backed by a lifetime guarantee. Designed for hikers who crave a sleeker profile without compromising performance, this pack is for those who find their current pack a little too roomy. The Circuit SV is perfect for 3-5 nights out for those with their gear dialed in. Or, if you need a little extra storage, the removable Top-Y and Bottom strap-system (sold separately) can help customize your on-trail experience.

Hikers everywhere agree; Whether you’re a weekend warrior, L.A.S.H.er, or thru-hiker, the Circuit SV will keep you moving freely. It’s the perfect balance of rugged durability, weight capacity, and weight savings in a comfortable long-hauler. The Circuit SV is a top choice for hiking any long-distance backpacking trail like the Pacific Crest Trail, Continental Divide Trail, Appalachian Trail and beyond. Ready to take your adventures to the next level? The Circuit SV is here to be your trail companion. Explore lighter, hike farther, and embrace the journey!

Our Verdict

I’ve been impressed by how ULA has refined this pack without losing what made the original Circuit such a favourite. The SV 48 is a tighter, sleeker version, designed for those who have streamlined their gear and want a pack that reflects their efficiency. At just 1064g (Medium torso & medium hipbelt), it’s not only light but also feels properly tough, thanks to the 400 Robic.

The frame and suspension hold loads up to 16kg well, and the fit adjustments make it easy to dial in. The stretch mesh pocket, made from UltraStretch, is tougher than most and easily accommodates wet kit or snacks without fuss. The hipbelt pockets are larger, keeping gear you need close at hand.

– Reviewed by Ultralight Outdoor Gear

Features

• Framing System comfortable for up to 35 lbs
• Ice Axe & Trekking Pole Loops
• Fits BV500 vertically inside 
• Height Adjustable Torso 
• Interchangeable Hip-belt 
• Load-lifters 
• Larger Hip-belt pockets than most of the industry 
• Padded back panel 
• Side Compression Straps
• UltraStretch Mesh 
• Standard Top Strap 
• Internal Suspension Hoop 
• Padded Backpanel 
• Contoured Shoulder Straps 
• Front Shock Cord 
• Rolltop Closure

Specifications

• Medium Torso Length Weighs: 839g
• Large Torso Length Weighs: 895g
• Small Hipbelt Weighs: 213g
• Medium Hipbelt Weighs: 225g
• Large Hipbelt Weighs: 241g
• Max load: 35 lbs / 16 kg
• Pack straps: J-strap

Volume breakdown

• Main body (with extension collar): 2,258 CI / 37 L
• Front mesh pocket: 214 CI / 3.5 L
• Left side pocket: 122 CI / 2 L
• Right side pocket: 122 CI / 2 L
• Left hipbelt pocket: 91.5 CI / 1.5 L
• Right hipbelt pocket: 91.5 CI / 1.5 L
• Pack total volume: 2,929 CI / 48L

Size breakdown

• Medium torso: 18″-21″
• Large torso: 21″-24″
• Small hipbelt: 30″-34″
• Medium hipbelt: 38″-38″
• Large hipbelt: 38″-42″

Material & Construction

• ULA 400 Robic: The toughest standard fabric we’ve ever seen. Highly tear and abbrassion resistant, reinforced with a ripstop weave to increase tear strength and stitch holding capabilities. 100% Robic Nylon fabric with three-pass Teflon DWR and a three-pass PU Coating, making it highly water resistant.
• UltraStretch™ Mesh: UltraStretch™ is an advanced 4-way stretch mesh woven with the highest quality fibers for performance and longevity. Made from a woven blend of Nylon 6-6, Lycra®, and Ultra-PE and coated with C0 DWR.

Help & advice:

• The Ultimate Guide to Choosing an Ultralight Rucksack
• Time-Saver Guide to Choosing a Rucksack