Arva Airbag Reactor Ultralight 25 Avalanche Backpack

Arva Product code: 20189000010
$453.14 $566.45 (VAT free) 20% Off In stock

A slimmed-down, refined and rebuilt backcountry pack - an ultralight safety essential 

The Reactor 25 Ultralight from Arva is designed for the weight-conscious backcountry enthusiast looking for a higher volume pack. The R25-UL combines simple lines and an ultra-lightweight design to result in an incredible weight/volume ratio without having to compromise on functionality. This backpack will appeal to fast-touring enthusiasts looking for a compact, lightweight, and technical airbag pack that maximises pack-space without compromising on safety.


Compact airbag system meets ultralight pack design

Arva’s truly compact Reactor Airbag system combines a canister-powered dual-airbag design with clever functionality that emphasis the user’s safety. Whilst it’s a few seasons old now, the combination of this system with ultralight backpack is a winning combination. This slimmed-down canister system sits centrally in the main compartment but takes up minimal critical space, making the Reactor system a solid choice for fast-and-light backcountry enthusiasts. 

The best bits…

  • Ultra-Light backcountry pack built with Arva’s Reactor Airbag System
  • Volume: 25L
  • Front access opening system
  • Ergonomic belt with single pocket
  • Skis (diagonal) / Snowboard / ice axe equipment carrying
  • Helmet holder Compatible
  • 3D fit technology offers maximum adjustability and a customised fit
  • Directable and height-adjustable handle
  • Key attachment clip
  • Safety pocket attachment
  • Hydration pocket Compatible
  • Goggle and valuables pocket
  • Light foam padded back system
  • Cordura 210D double ripstop /Polyamide 210D double ripstop backpack materials
  • New airbag compartment closures

Note: Canister is not included


Volume (L) 25
Weight (kg) 1.72


  • Free Worldwide Delivery | Non-Tracked | US & CA - $0.00

    Delivery expected by Thursday 4 July

    This is a limited-time free shipping offer. It's free, so won't be the fastest service we offer, and depending on the size of your item, it may not be tracked - but it will be a good reliable service that should arrive within three weeks.

  • Royal Mail Airmail | Non-Tracked | USA & Canada - $6.28

    Delivery expected by Monday 1 July

    Royal Mail Airmail is a budget non-trackable delivery method for smaller items. There are no guarantees on delivery date, as this will depend on your location. It is rare for delivery to take more than 2 weeks. If you would like more detailed information please contact us at

  • Royal Mail Airmail | Tracked | USA & Canada - $12.58

    Delivery expected by Wednesday 26 June

    This service is fully trackable and will be delivered by your Postman, Monday to Saturday at your normal delivery time. There is no signature required. Delivery times are approximately 7 working days, however remote areas may take slightly longer. if you have any queries regarding delivery times please email us at

  • Express International Light | Tracked | USA & Canada - $18.87

    Delivery expected by Thursday 20 June

    This is an express fully tracked service with either DHL or Fedex, and a signature is required on delivery. Delivery will be made Monday to Friday between 9am and 5pm. Details regarding delivery times can be found on our delivery information page. If you have a specific request for the courier to be used, please email us



Generally, we'll be happy to exchange or refund anything you've bought for up to one month from the date you receive it, so long as it’s in perfect, unused condition. If you'd like to return or exchange an item you bought more than one month ago, then you may be able to, but please email us about it first – a small restocking charge may also apply.

Returning or exchanging an item does not affect your statutory rights. You’ll find the official cancellation policy within full our Terms & Conditions.


All orders made between 1 November 2018 and 24 December 2018 are eligible for our extended return period. So, if you’re buying someone a gift and it’s not quite right, you’ve got until 24 March 2019 to return it*.

*All other return terms & conditions still apply.


On the back of the delivery note that's included with your order you'll find your returns form. This outlines everything you need to know about the returns process, the information we’ll need from you and where you need to send it back to. If you can't find this form, just download it here, or get in touch on and we'll email it over to you.


You’re responsible for the cost of returning items to us, but if you choose an exchange, we’ll be happy to cover the cost of shipping things back to you.


  • Anything that’s missing its tags or isn’t in a perfect, new and unused condition, including all its packaging
  • Skis and ski bindings which have been mounted, because these will have been done to your specific requirements and can’t be resold
  • Underwear