ULA Circuit review

The Circuit is the pick for hikers who want to cut weight without going frameless. ULA lists 68 L of total volume at 38.5 oz, about 2.2 lbs. less than the Osprey Atmos AG 65 in S/M. Load transfer comes from a 1.2 oz carbon fiber and Delrin hoop, a dense internal foam frame and a single aluminum stay, and ULA recommends keeping loads under 35 lbs. Fit is the strong point: you choose one of four torso sizes, one of six hipbelt sizes and J-shaped or S-shaped shoulder straps. Each side pocket fits two 1-liter bottles, and the pack has combination ice axe and trekking pole loops. ULA offers a lifetime warranty, with conditions on its site. The trade-offs are the 35 lb. ceiling, extras such as the $16.99 bottom strap kit, and no listed raincover. We compared documented features and published prices and did not carry the pack.

Who it is for

thru-hikers who want a light pack that still carries a bear canister

Price

$299.99 on ULA's US store as of November 2026.

$299.99
Quoted from the vendor pricing page on November 13, 2026.

Key features

• 68 L (4,200 cu. in.) at 38.5 oz (1,092 g)
• Recommended max load of 35 lbs. (16 kg)
• Carbon fiber and Delrin suspension hoop, internal foam frame and a single aluminum stay
• Four torso sizes from 15 in. to 24 in. plus, six hipbelt sizes and J-Strap or S-Strap shoulder straps
• Side pockets that each hold two 1-liter bottles, plus combination ice axe and trekking pole loops

Strengths and weaknesses

• Strength: Most volume on this list at 68 L
• Strength: Separate torso, hipbelt and strap choices for a custom fit
• Strength: ULA lists a lifetime warranty and free US delivery over $50
• Weakness: 35 lb. max load, lower than the Osprey, Gregory and Granite Gear packs
• Weakness: Bottom straps cost $16.99 extra
• Weakness: No raincover or sleeping bag compartment listed

Key facts

• Price: $299.99
• Volume: 68 L
• Weight: 38.5 oz
• Max load: 35 lbs.
• Warranty: Lifetime warranty (terms on ULA's site)

Where it ranks

ULA Circuit is No. 3 in our Best Hiking Backpacks verdict.