ARCTIC ACCESSORIES

MIZU D7 BOTTLE

Founded by Finnish snowboarder Jussi Oksanen, Mizu’s most-insulated bottle has a copper lining and a vacuum-sealed cap. €44.95 (£38). mizulife.eu

GARMIN MONTANA 700

With a 330-hour battery life, this GPS mapping device is ideal for any adventure where charging is an issue. £529.99. garmin.com

DARN TOUGH SOCK EXTRA CUSHION

Designed to cope with extreme cold, these 73% Merino wool socks will be your best friend in temperatures as low as -20C. £24. outdoorgb.com