The best mast climbing gear for sailors & solo climbers


The best mast climbing gear for sailors isn’t necessarily anything fancy and marinised with a premium price tag, instead you can pick up the best mast climbing gear from a regular high street store with a climbing department. This buyers guide has all the gear for climbing a mast solo, double handed or fully crewed.

The best mast climbing gear for solo sailors or double handed sailors can be found in some well known high street stores and not necessarily in a chandlery.

This buyers guide curates all the gear you might need with plenty of alternative options to suit individual tastes and needs.

If you are unsure how to climb a mast on your own or with a short handed team of two, then you can read how to do that in my other article explaining in a step by step guide how to climb a mast, using some of the gear in this buyers guide.

Happy climbing!

best mast climbing gear demonstrated

The basic set up at a glance

DMM Women’s Vixen Harness – Buy now from GoOutdoors.co.uk

Petzl Ascension Ascender – Buy Petzl Ascension left handed from GoOutdoors.co.uk

Petzl Gri Gri + – Buy GriGriplus from Decathlon

 


Best Mast climbing gear: Essential buyer’s guide

Harnesses and Bosun’s Chairs

DMM vixen womens harness - climbing a mast

DMM Women’s Vixen Harness

Reasons to Buy: Light weight, easy to stow, custom fit and secure
Reasons to Avoid: Can cut off circulation to legs if hanging around a long time

This is the harness I used in the video. It is designed for women. I’ve used it for about 8 years and it is still in great condition. It comes in sizes XS to L. I bought the L to fit over my foulies or larger clothes, but it is a little big when wearing just light form fitting clothes. Ideally I would get a smaller sized harness for that purpose.

Specifications
• 5 gear loops
• breathable
• 345g (xs) – 410g (large)

Buy now from GoOutdoors.co.uk


Beal Venus Soft Climbing Harness, Blue

Reasons to Buy: Light weight, easy to stow, custom fit and secure
Reasons to Avoid: Can cut off circulation to legs if hanging around a long time

The Beal harness, which is designed for high level climbing is my second harness for use when I am not wearing full foulies. It fits comfortably over shorts or leggings. The soft fit feels snug and comfortable around my hips and thighs and the harness has a good number of gear loops to clips bits and bobs to. It has a double ziplock fastening and is a little lighter weight than the DMM harness above. The leg loops are nicely adjustable to avoid pinch too.

Specifications
• 4 gear loops
• breathable
• 321g (size 1 – waist 61-76cm, thigh 45-57cm)
• 358g (size 2 – waist 75-90cm, thigh 54-66cm)

Buy now from GoOutdoors.co.uk


Note: We may earn a commission when you buy through links on our site, at no extra cost to you. This doesn’t affect our editorial independence. Where indicated, items have been tested independently of manufacturers influence.

Petzl Adjama mens harness - climbing a mast gear

PETZL Adjama Harness

Reasons to Buy: Light weigtht, easy to stow, custom fit and secure
Reasons to Avoid: Can cut off circulation to legs if hanging around a long time

 Leg loops adjustable with doubleback buckles, to adapt to different body types and to seasonal clothing. Capacity to carry large amount of gear.

Specifications
• 5 gear loops
• 460g (s) – 545g (large)

Buy now at GoOutdoors.co.uk

Buy now at Amazon.com


Lalizans bosuns chair - climbing a mast

Lalizas Bosun’s Chair

Reasons to Buy: comfortable for lengthy spells working up a mast, built in tool stowage, can be used in conjunction with a harness
Reasons to Avoid: smaller users might find the metal triangles can hit their chest, not as secure as a dedicated harness

Rigid seat, basic bosun’s chair  from Lalizas as seen on many boats around the world. I have used this one a lot. The only niggle I have with it is the hard metal triangles used for attaching to the halyard have bruised the middle of my chest when they push back while working aloft. I make sure I wear good padding when I use it now, and this may not affect taller people. I keep using it because the hard seat suits me and it’s better than a wooden plank with carpet stapled to it.  Combine this with a harness when working aloft on a lengthy job.

Specifications
• tool pockets and loops
• rigid seat
• no frills but does the job

Buy now on Amazon.co.uk


professional bosuns chair for working aloft on a yacht mast

Lalizas Professional Bosun’s Chair

Reasons to Buy: comfortable for lengthy spells working up a mast, built in tool stowage
Reasons to Avoid: smaller people might feel a bit too enclosed in this larger seat

A comfortable bosun’s chair with secure back to avoid slipping through. Good tool storage onboard and tool loops. I’ve used this one on various boats over the years including in the opening picture to this article. It always inspires confidence and comfort.

Specifications
• Used by many professional riggers
• Comfortable for lengthy spells
• Lots of tool storage

Buy Lalizas Professional Bosun’s Chair from Bataeu Plus via Amazon.co.uk


Ascenders

petzl ascension ascender left and right hand models best mast climbing gear

Petzl Ascension Ascender

Reasons to Buy: good for use on most boats using up to 13mm halyards
Reasons to Avoid: if you have halyards larger than 13mm this wont fit

This is the ascender I use on my own climbing gear. I use a left handed version because I am right hand dominant and it’s easier for me to slide the ascender up with my left hand while pulling up on the lazy line with my right hand.

Specifications
• line size: 8mm – 13mm
• 165g
• left or right handed versions

Buy Petzl Ascension from Amazon.com


Climbing Technology Quick Up+ Ascender

Climbing Technology Quick Up+ Ascender

Reasons to Buy: good for use on most boats using up to 13mm halyards, two seperate holes for gear and lanyards on the bottom keeps gear organised
Reasons to Avoid: if you have halyards larger than 13mm this wont fit

The easy-to-use Quick Up+ ascender from Climbing Technology comes with an ergonomic, glove-friendly grip that makes it a solid option for fixed-rope ascents.

Specifications
• line size: 8mm – 13mm
• 215g
• left or right hand versions

Buy CT Quickup Ascender from AlpineTrek.co.uk


Belay Devices

Petzl Gri Gri + climbing a mast best mast climbing gear

Petzl GriGri+

Reasons to Buy: enables a smooth controlled descent and easy to take up slack when climbing, easy to use
Reasons to Avoid: a little pricey for some, involves moving part so you need to ensure you use it correctly to avoid damage

This belay device can be used with all single ropes (optimised for 8.9 to 10.5 mm diameter ropes) and is equipped with an assisted breaking function. Suitable for beginner mast climbers to expert riggers.

Specifications
• line size: 8.9mm – 10.5mm
• 200g
• auto-locking

Buy GriGriplus from Amazon.com


Matik belay

Matik belay

Reasons to Buy: enables a smooth controlled descent and easy to take up slack when climbing
Reasons to Avoid: a little pricey, if you prefer to side feed you may want the other style of belay device

This works in a similar way to the GriGri but the line feeds in a straight line rather than from the side. Some people prefer this to avoid their lines becoming twisted.

• line size:  8.6mm to 10.2mm

• 276g

• antipanic auto clutch engagement

Buy Matik Belay from Amazon.com


Petzl reverso

Petzl Reverso

Reasons to Buy: enables a smooth controlled descent, simple device with very little to go wrong
Reasons to Avoid: requires a little more skill to use

No moving parts, the Petzle Reverso is a simple belay device that can be more easily put on or taken off a line as you go. You push a bight of rope through one of the apertures and clip a carabiner through to act as the friction turn. A really handy bit of a kit.

Specifications
• line size 8.5mm to 10.5mm
• 57g
• very simple device with little to go wrong.

Buy Petzl Reverso from Amazon.com


Carabiners

Grivel Mega K6N Screw Lock Snap Hook climbing a mast

Grivel Mega K6N Screw Lock Snap Hook

Reasons to Buy: You need several carabiners to rappel, good value for money
Reasons to Avoid: Don’t use in places where cross loading might be likely

For belaying and rappelling. It is designed for use with both single and double ropes.

I use two of these in my solo mast climb gear. One is used from the bottom of the ascender to hold the footloop and personal lanyard and the other is used on the top of the ascender to work as a reduction turning point for the belay lazy line.

Specifications
• 7000-series aluminum
• Screwgate
• 78g

Buy Grivel K4n Carabiner from Trek Inn


Black Diamond Gridlock Screwgate Carabiner climbing a mast

Black Diamond Gridlock Screwgate Carabiner

Reasons to Buy: use these in areas where cross loading is likely to happen, easy to use
Reasons to Avoid: they don’t fit on to the ascender as easily as some others

Designed specifically for belaying, the GridLock isolates the belay loop behind its uniquely shaped gate, thereby keeping the carabiner in its proper orientation.

I use two of these carabiners, both from my harness. The anti-crossloading design is reassuring as the repeated loading and unloading of both the belay and ascender has a tendency to make standard carabiners rotate and there’s a high risk of crossloading when solo rappelling.

Specifications
• Anti cross load design
• 76g

Buy Black Diamond Gridlock from GoOutdoors.co.uk


DMM - Rhino Quicklock - Locking carabiner climbing a mast best mast climbing gear

DMM – Rhino Quicklock – Locking carabiner

Reasons to Buy: anti crossloading horn can be useful, some love the twist lock feature of the gate
Reasons to Avoid: the twist lock gate might not suit some people

For regular users of pulleys or GriGri like belay devices.

I use this carabiner on my prusik line. The horn stops the hitched on line sliding around the carabiner as it is repeatedly adjusted.

Specifications
• Anti cross load horn
• Quicklock gate
• 81g

Buy DMM Rhino from Alpine Trek.co.uk


Slings and quickdraws

DMM Dyneema sling best mast climbing gear

DMM Dyneema sling

Reasons to Buy: basic lanyard, nothing to go wrong
Reasons to Avoid: some might find they need a greater degree of adjustment

Dyneema has several advantages over traditional nylon webbing – it’s incredibly light and strong, less susceptible to UV degradation and is more abrasion resistant.
I use this sling as my personal lanyard between harness carabiner and the ascender. You need to find a sling that can be adjusted to your own personal reach length. I double this one over to give me the correct length.

Specifications
• 11mm Dyneema tape
• 120cm
• Strength: 22kN

Buy DMM Dyneema sling from GOOutdoors.co.uk


Multi Chain Evo Daisychain

Multi Chain Evo Daisychain

Reasons to Buy: gives a greater degree of adjustment than a simple sling, easy to use
Reasons to Avoid: Costs more than a simple sling

A daisy chain is a versatile alternative to the above single sling option. You can use this to adjust lengths for multiple applications, which might be ideal if more than one of you will be using it to climb the rig, especially if you’re notably different heights. Obviously there’s a cost implication as it’s four times the costs a basic dyneema sling.

Specifications
• 90g
• Tensile strength: 24 kN
• Dyeema loops

Buy Multi Chain Evo from AlpineTrek.co.uk


Beal Nylon Sling used as footloop for climbing a mast

Beal Nylon Sling

Reasons to Buy: a budget way to get a good quality footloop, can be used for a multitude of other tasks
Reasons to Avoid: some prefer a rigid foot section to their footloop, not as easy to adjust as a dedicated footloop

A basic Nylon loop, ideal for use on a multitude of climbing uses, I personally use this as my footloop. I have two of them. They are cow-hitched onto the bottom of my ascender, one is tucked away and the other used for climbing. When I reach working height I use the second loop to stand up with both feet or to wrap one around the mast. It’s very handy to have two of these.

Specifications
• length 120cm
• width 16mm

Buy Beal Nylon Sling from GoOutdoors.co.uk


PETZL - Footape - Foot loop sling

PETZL – Footape – Foot loop sling

Reasons to Buy: Adjustable footloop with a decent foot spreader to avoid your foot being squashed under tension
Reasons to Avoid: a bit more pricey than a basic loop, designed solely as a footloop so not suitable for other jobs

Simply attach the sling to your handled ascender, adjust the length with the secure Mini DoubleBack buckle, and start making upward progress.

This is for those who can’t quite get the right length from a fixed simple loop or you want the foot security from a more rigid and foot secure adjustable loop

Specifications
• 65g – 20mm webbing
• Minimum length 84cm
• Maximum length 125cm

Buy Petzl Foot loop sling from AlpineTrek.co.uk


Black Diamond Quick Draw

Black Diamond Quickdraw

Reasons to Buy: really handy for carrying kit or gear aloft, useful for tethering yourself in place to hold you while you work
Reasons to Avoid: none

Wire gate and solid gate carabiners. quick and easy to clip to a harness and then to secure tools, gear, or yourself to a solid point while you work at height.

Specifications
• 103g
• 12cm sling

Buy Black Diamond Quick Draw from Decathlon


DMM Quickdraw Shadow

DMM Quickdraw Shadow

Reasons to Buy: really handy for carrying kit or gear aloft, useful for tethering yourself in place to hold you while you work
Reasons to Avoid: none

Two solid gates on an 18cm sling. Quickdraws comes in a variety of wire and solid gate styles with a variety of sling lengths. You can buy them in multipacks or individually.

Specifications
• 113g
• 18cm sling

Buy DMM Shadow quickdraw from GoOutdoors


Don’t forget to use your own judgement when following our advice, or use a professional. Here’s our full disclaimer. 


Further reading on mast climbing methods and equipment

How to climb a mast safely at sea – masterclass with Pip Hare

Mast Climbing for short handed crews

7 mast climbing kits on test

12 Bosun’s chairs tested

What happens when you dismast in the antarctic


Enjoyed reading Climbing a mast – best climbing gear & practical guide?

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