Backpack
Mobile phone, insert emergency numbers, keep the phone always on, do not mask the number, check to start with fully charged battery and enough call volume
Personal drinking cup (at least 15cl). No drinking cup will be available at the refreshments
Bottles or camel bag, with a water reserve of 1lt (at least)
Survival blanket / heatsheet
Long pants or capri pants + socks (to completely cover the legs)
Solid food reserve
Waterproof jacket (like GoreTex) with hood
Warm clothing (long-sleeved shirt) suitable to face extreme conditions and extreme cold on the mountains (wind, rain, snow)
Whistle
Adhesive elastic band, suitable for making a bandage or strapping (min 100 cm x 6 cm)
Hat, cap or bandana