Petzl Whisper Harness

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An ultralight alpine harness that stays secure, breathable and comfortable in demanding conditions.

Petzl says: 

Ultra-lightweight and technical harness for high-performance climbing and mountaineering.

Extremely lightweight and technical, the WHISPER harness is a breath of fresh air for dedicated mountaineers and climbers. Its innovative construction with MATRYX® Technology fabric is focused on the necessities: it’s compact and lightweight without forgoing comfort. With a slim and flexible waistbelt and leg loops, it allows you to move freely. Featuring five gear loops, it provides the capacity to carry all the gear you need for demanding mountain expeditions and rock routes. Its tie-in points and gear loops are designed to provide long-lasting abrasion resistance.

Our Verdict

At just 197g in a Medium, the Petzl Whisper harness is one of the lightest technical harnesses available. It is purpose-built for alpine climbing and minimalist missions where weight and bulk matter.

MATRYX fabric offers a rare blend of abrasion resistance and breathability, keeping things dry and comfortable during long routes. The slim waistbelt and leg loops are surprisingly supportive while allowing excellent mobility, and the harness packs down impressively small. I found the gear loops well placed and generous, though heavily racked, they can cause a slight bunch at the waist. The fit leans on the snug side, so it may be worth sizing up if you’re in between.

– Reviewed by Ultralight Outdoor Gear

PLEASE NOTE: FOR SAFETY REASONS THIS PRODUCT IN NON-RETURNABLE UNLESS FAULTY.

Features

• Extremely lightweight and compact:

– 170 g in size M

– Ultra-compact, it takes up minimal space in a pack

• Optimal freedom of movement:

– Exceptionally slim waistbelt and leg loops provide absolute freedom of movement, making it practically unnoticeable when worn

– Excellent breathability, due to individually coated strands of HMPE and nylon, specific to the high-performance MATRYX® Technology fabric; this process allows the fabric to quickly wick away sweat when the climber is moving

– Comfortable while resting on the rope or when managing gear at the anchor; MATRYX® Technology construction allows specific areas to be padded for comfort and support

• Enhanced durability:

– Highly abrasion-resistant due to the composition of MATRYX® Technology fabric

– Tie-in points, webbing, and gear loops reinforced with HMPE for greater resistance to abrasion and rubbing

• Carries and organizes a large quantity of gear:

– Two very large, rigid gear loops in front for carrying a large amount of gear and to easily clip and unclip carabiners

– Two rear gear loops don’t get it in way of wearing a backpack

– Flexible rear loop for a tag line or essential accessories

– Two slots for CARITOOL tool holders: optimized for CARITOOL EVO and compatible with CARITOOL

Specifications

Medium

• Weight (excluding pouch): 197g
• Waist belt: 77-84 cm
• Leg loops: 52-57 cm

Large

• Weight (excluding pouch): 215g
• Waist belt: 84-92 cm
• Leg loops: 55-60 cm

Material & Construction

• Material(s): High-modulus polyethylene, nylon, polyester, aluminum
• Certification(s): CE EN 12277 type C, UIAA
• Comes with a storage pouch made from 100 % recycled polyester fabric