For anyone who is thinking of attempting ANY outdoor activities, I cannot recommend the Bolle eyewear products enough. They operate brilliantly in glare or dim conditions, they are not phazed by sub-zero temperatures. For me, they outshine their competitors. Base layers – Bear Grylls (Craghoppers) Merino wool or the new Columbia base layer with the ‘foil’ on the inside – Omni heat. Neither of these base layers had me feeling cold and throughout the expedition, I was toasty all the way for a very small price in weight (don’t forget I was dragging all of this). My ‘wee’ bottle failed abysmally – make sure that yours is water tight! Make sure that you test it beforehand. I found out the hard way. My Berghaus Aura jacket (without the fleece inside – too warm) was amazing. Truly wind proof and very tough.