This is a review* of the Grivel Spider, a flexible, lightweight set of microspikes whose aim is to act rather like ‘junior’ crampons and can fit to almost any shoe or boot.
If you are winter climbing in Scotland, sometimes you can have the good fortune to be climbing up the frozen crust of a 50 cm depth of snow which is not quite steep enough to require you to cut steps. This is where a pair of crampons is a great aid. However is is far more normal in a British winter that you’ll find yourself alternately walking on 1-2 cm of frozen compacted snow, soft powder then frozen turf. Under these more common conditions, what can you use to prevent you from over use of that noted climbing manoeuvre, the flying buttocks arrest?
As I get older I find myself becoming increasingly cautious on slippery descents. I guess I now have the wisdom to know that I am not indestructible! I love walking in the snow, but this winter I have often found myself on sections of path which have been well walked, and thus compacted, by others. This can make descents frustratingly slow as I found on my ‘pre-tier-three’ trip to Buttermere a few weeks ago.
Enter the Grivel Spider. I bought a pair of these over a year ago to aid me on the most treacherous terrain I have ever tackled in UK, the pavement between home and work! These simple light weight spikes fit the instep of anything from trainers to full blown winter boots. On a more recent walk I remembered I had the ‘Spiders’ and took them with me just in case. Advantage One : They allow for this as they are small and light. As I got higher on my climb I found myself on a path covered with the aforementioned thin layer of compacted snow so I stopped and pulled on the Spiders. Now I found I could walk onwards with complete confidence. It was indeed just like having a set of junior crampons.
A big plus for me was being able to walk at my normal pace without fear of slipping or falling over. Advantage 2 : They stopped me falling on my arse. Once I was up on the ridge I found no hindrance in continuing to wear them as I walked through the powder, nothing clumped on them. Then they really came into their own as I descended – again I could walk at a good pace a free of fear of slipping. Now to look at a downside: The flexible plastic plate becomes a lot more rigid in the cold and I found it hard to get the fit truly tight when fitting them in the field. Twice in six miles one of the spiders fell off – so I found I did need to do a visual check every few minutes to prevent a long walk back to find the errant item. What I did find is that they got easier to tighten with time, not because the plastic became permanently more flexible, I think it just warmed up through flexing. Thus the next day I chose to stop and re-tighten the straps after 15 then 30 min of use, after which they were then secure enough not to need checking for the rest of the day.
How do they compare to the competition? In comparison with a range of shoe grips on the market they are more robust that many. Advantage 3 : You can keep them on ‘til you are fully clear of the ice and snow, knowing that walking over (snow free) rocky ground will not harm them. This sets them apart from those based on elastomer skeletons like those from Petzl or Yaktrax. I cannot give you a side by side comparison to alternative options but I’d love to try either a pair of Grivel Ran’s or Hillsound’s Trail Crampon, should either company like to lend me a pair to review 😉
Finally, Advantage 4 : One size can fit to any shoe or boot, so I can swap the same pair of grips between my boots and my run-commute trainers, so that’s less clobber in my cupboard and more cash left in my wallet. I’d hesitate to make a full blown recommendation of the Spiders until I could compare them against some Grivel Ran’s but I do know they make the tricky, trivial and have facilitated a few really great walks on my my local fells without once needing to employ a flying buttocks arrest.
*This review is not sponsored, I bought the kit and now I’ve shared my views. All I hope to gain from this exercise is to help other hillwalkers.