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Arcteryx Mens Beta SV Bib Black

£348.75 £465.00
25% off

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Ultimate protection without being too overkill - the Beta SV Bib is a pair of Gore-Tex Pro trousers that are super tough, incredibly hard-wearing and designed to protect you in the worst conditions.


Versatile high performance designs for diverse activities and conditions.


Versatile: high performance for diverse activities and conditions.


Most durable materials and weather protection, for prolonged exposure to severe conditions.

Arcteryx Mens Beta SV Bib Black

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Designed to protect you in the worst conditions, the Beta SV Bib, with incredibly tough reinforcements and a breathable Gore-Tex Pro Membrane, is the ultimate fortress against the elements. Whether you're out for a soggy scramble or a long hike in the Beacons, these trousers will allow you to truly enjoy your day out.

The membrane used in these trousers is the incredibly reliable, highly breathable and very durable 3-layer Gore-Tex Pro. The majority of the trouser has an insanely tough 80D Nylon face fabric, with 155D Nylon reinforcements in the high wear areas (like the seat and the inner, lower leg for extra abrasion resistance from rock and crampons). The inner lower leg is also reinforced with Keprotec, a Kevlar blend fabric, to further increase their abrasion resistance. Don't let the tough exterior fool you though, the trousers are incredibly light and supple for their level of durability, so they feel great on, whilst still offering optimal levels of protection.

As the trend with Arcteryx, the features of these trousers have been incredibly well thought out. The fully separating, 2-way, WaterTight zippers on either side of the trousers allow for easy removal over boots and crampons but also (teamed with the fact that the adjustable suspenders only attach to the front half of the trousers) allow you drop the seat of the trousers without having to remove the suspenders - meaning you can 'do your business' far quicker and easier, which is really important when the weather is terrible. The low bib (which sits much lower than your nipples to avoid chaffing) is elasticated through the waist to keep the cold and the snow out. To stop any ingress of snow and water into your boots the trousers feature tough 100D Cordura PowderCuffs with a lace hook to secure the trousers to your footwear. The trousers also feature two zippered pockets on the bib and a full-length fly-zipper with a popper attachment, which is easy to secure when wearing gloves.

The trousers fall into Arcteryx's 'Relaxed' Fit Group, which means that they are cut loosely through the waist, hip and thigh for a casual fit, whilst the e3D (ergonomic 3D) patterning provides an enhanced level of articulation and movement.

These elements come together to give you a pair of waterproof trousers that you actually don't mind wearing all day. They are comfortable, smart in their construction and damn sexy (which is something you can say for waterproof trousers very often). You'll be sat at home wishing for wet weather days! 

  • Waterproof
  • Breathable
  • Durable
  • Hard-wearing
  • N80p-X 3L Gore-Tex Pro
  • N155p-X Reinforcements in high wear areas
  • Keprotec instep patch
  • 100D Cordura PowderCuff
  • Lace Hooks
  • WaterTight full-length 2-way side zips
  • Low bib with elasticated waist
  • 2 zippered pockets on the bib
  • e3D (ergonomic 3D) patterning
  • Relaxed Fit
Code : 21790-BLA-

Season : Sale

Weight : 0KG

Sizing Information

Arc'teryx Men's Legwear

Sizing refers to your body size, not the size of the product. Pant inseam, length of actual garment.

Size Waist Hip Short Regular Long
XS 29" 36" 30 ½ " 32 ½ " 35 ⅓ "
S 31" 38" 30 ½ " 32 ½ " 35 ⅓ "
M 33" 40" 30 ½ " 32 ½ " 35 ⅓ "
L 36" 43" 31 " 33 " 36 "
XL 39.5" 46.5" 31 ⅛ " 33 ⅛ " 36 ⅛ "
XXL 43" 50" 32 ⅛ " 33 ⅛ " 37 ⅛ "
Size Waist Hip Short Regular Long
XS 74 cm 92 cm 77 cm 82 cm 89.5 cm
S 79 cm 97 cm 77 cm 82 cm 89.5 cm
M 84 cm 102 cm 77 cm 82 cm 89.5 cm
L 92 cm 110 cm 79 cm 84 cm 91.5 cm
XL 100 cm 118 cm 81 cm 86 cm 93.5 cm
XXL 110 cm 128 cm 82 cm 87 cm 94.5 cm

Next to Skin Fit: Cut snug to the body through the entire garment to enhance moisture management and thermal efficiency.

Slim Fit: Cut slim to the body through chest, waist, hip and thigh for a low profile fit.

Regular Fit: Cut comfortably from the body through bust/chest, waist, hip and thigh for a classic fit.

Relaxed Fit: Cut loosely through the waist, hip, and thigh for a casual fit.


Measure around your chest/bust, holding the measuring tape under your armpit.


Measure around your waist at the narrowest part.


From a standing position, measure from your crotch to your ankle.


With your arms in a slightly bent position, measure from the centre of the back of your neck, along the length of your arm, to the wrist.


Measure around your hips at the widest part.

Technical Information

Weight: 680g


N80p-X 3L Gore-Tex Pro: 100% Nylon

N155p-X Reinforcements: 100% Nylon

Keprotec instep patch: Kevlar Blend

Care & Advice

Care and maintenance

To keep your outdoor clothing and equipment in tip top condition and performing to its maximum we recommend the use of Nikwax products. We have been using Nikwax products since day one (26th March 1986) and have found them to be totally reliable, dependable and effective. Today’s Nikwax treatments contain environmentally friendly elastic water-repellent polymers that bond to fabric fibres, leaving the spaces between open and breathable. These stretchy polymers are able to stretch and move with the fabric so they stay put for longer and work better.

Nikwax treatments will not change the look or feel of the fabric and they are all water based, environmentally safe, non-flammable and contain no nasty Fluorocarbons. Nikwax products can be used to clean, re-proof and revitalise all your outdoor technical clothing and equipment.

Waterproof breathable clothing has a durable water-repellent (DWR) finish applied to the face fabric during the manufacturing process. The DWR forces water to bead up and roll off the surface therefore preventing the fabric from absorbing moisture. If the outside of your jacket is soaked in a layer of cold water, the warm damp air within can’t escape and will condense on the inside. This makes the jacket feel cold clammy and can make you think that it’s leaking. The DWR finish is not permanent and needs to be maintained and revitalised to optimise performance.

This three layer waterproof jacket should be cleaned regularly with Nikwax Tech Wash; I wash my jacket about once a month, or more often if it gets really filthy. Regular washing with Tech Wash will maintain the DWR for longer and remove salts and oils that can contaminate the fabric, and it will keep your lovely jacket clean and smelling fresh. Washing can be done in a machine according to the manufacturers care guidelines (on the internal label). First clean out any detergent and conditioner residue from the machine dispenser and then add the required amount of Tech Wash and away you go. Hand washing is also suitable but be sure to rinse the garment well.

When you notice that rain/water is no longer beading up and rolling off it’s time to re-proof. Nikwax TX Direct will re-instate a long lasting DWR to completely rejuvenate your jacket. Re-proofing can also be done in the machine once a garment has been washed. Just add the TX-Direct and use the same programme you used for washing. You can also use the spray-on product on a damp garment that has just been washed.

You wouldn’t buy a Ferrari and never have it serviced, so make sure you regularly wash and re-proof your quality kit.

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Arcteryx Mens Beta SV Bib Black

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Excellent customer service. Really detailed easy to understand product descriptions on the Trekitt website, and gear reviews on the Trekitt YouTube channel made it so easy to choose the right backpack for me.
Emily - May 2020
Amazing service! Very helpful in regards sizing and what most matched my needs, despite this being done over the internet. YouTube videos of products being examined are very useful also. Would definitely use again, very fast and efficient delivery. Brilliant! Highly recommended!
David R - April 2020
Highly recommend. I usually go to the shop in Hereford as staff are alwasy very helpful and knowledgeable. So this was the first time I have purchased online and the service was just as good as the shop.
Grizzy - April 2020


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