Ascent 500 Sleeping Bag: 34F Down

40% OFF

$243.00

$405.00Save $162.00 (40%)

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Price Historylast 2 months

Low $243.00 · High $243.00. Hover the line to see each change.

Is this a good deal?

The current price has held for 59 days.
Across the 37 Sleeping Gear deals we’re tracking right now, the median discount is 36% — this deal’s 40% off is right around that mark.

Based on prices we’ve recorded from Backcountry since May 2026, refreshed several times daily.

About this product

The Rab Ascent 500 is a wide mummy sleeping bag designed for camping and backpacking in shoulder-season conditions, carrying a European Norm comfort rating of 34F (1C) and a lower limit of 25F (-4C). Its 650-fill Nikwax hydrophobic down resists moisture absorption to maintain loft in damp environments, while the 30D Pertex Quantum recycled nylon shell, treated with DWR, adds an outer layer of weather resistance. A down-filled draft baffle runs along the 3/4-length zipper to block cold air infiltration, and a 3D neck collar helps retain warmth at the shoulders. The wide mummy cut provides more freedom of movement than a traditional close-fitting mummy shape. At a packed weight of 499g (claimed weight 2lb 5oz), the bag stuffs to 13.8 by 7.8 inches and accommodates users up to 66.9 inches tall. Shoulder circumference measures 61.4 inches, hip 52.8 inches, and foot 42.5 inches. One internal stash pocket, a stuff sack, and a storage sack are all included. The shell uses recycled nylon, and the bag carries a lifetime manufacturer warranty.

Category: Sleeping Gear
Brand: Rab
Material: 30D Pertex Quantum (recycled nylon), DWR treated, [lining] 20D recycled nylon
Color: Marina Blue
Size: 13.8 x 7.8in
Shape: wide mummy
Degree: 25F
Zipper: 3/4-length
Pockets: 1 internal stash
Activity: camping, backpacking
Bag Length: 78.7in

What people are saying

Reviewers consistently praise the Rab Ascent 500 for its durable Pertex Quantum outer, impressive feature set for the price, and Nikwax hydrophobic down treatment that maintains loft even in damp conditions. The trapezoidal baffle construction earns credit for eliminating cold spots, and the generous interior fit is frequently highlighted as a comfort advantage. Sustainability credentials, including RDS-certified down and recycled, PFC-free fabrics, are also well regarded. The most common criticisms are that the bag sits outside the ultralight category due to its weight, the three-quarter-length zipper can snag and limits ventilation on warmer nights, and some testers find the shoulder and hip area narrower than ideal. A few reviewers also consider it pricey relative to its temperature rating.