As the summer approaches hopefully the alpinists amongst you will be gravitating towards snowy summits in the Alps and beyond. To help get you in the mood Crux are giving three lucky climbers the chance to win one of our AX rucksacks in the size and colour of your choice.

Available in five sizes, the AX rucksacks are lightweight, classic alpine sacks made from an exceptionally tough Dyneema/Cordura ripstop fabric. They share the same features and comfortable carrying system as the AK rucksacks and represent outstanding value for money.

Since launching the AX range in 2015 climbers have taken the packs to mountains all over the world. A few of them have been kind enough to share their photographs with Crux.

To win your own AX pack all you have to do is identify the four mountains pictured below.