With The Marcothon, arrives difficult weather. Guaranteed.  I believe it's much more to do with it becoming December, Instead of some thing individual though.  Even though this 12 months I was ready with Kahtoolas and Yaktraks at the ready.
I've been requested a rare occasions by non-gripper-owning athletes which of the two I would recommend, so I believed I'd post my verdict.
Yaktrak professional

What they say:  The Yaktrax professional is well suited for the individual requiring elevated sturdiness Whilst working, operating or taking pleasure in outside actions on glaciers or loaded Snowfall throughout the winter season months. It is designed with a detachable overall performance straps that was created for stability.  Yaktrax professional are produced from organic rubberized with 1.4mm high- power scratching proof circles produced from 70% reused metal.

My verdict: The pros

• Yaktrax professional are mild weight, from 145gm - 155gm based on size.
• Easily transportable: You can move them up and adhere them in your pocket, buckle or merely have them.
• Fairly affordable and can be purchased in as little as £10 On the internet - based on demand.
• Great for Strolling as well, so can Dual up for daily use during frozen conditions.
• Perfect for sidewalk Beating or for slim levels of glaciers

The cons

• They are really challenging placed on - particularly when managing on 1 lower-leg utilizing chilly hands.
• I've noticed really a few reviews of Yaktraks breaking/snapping. 
• I've also noticed really a few reviews about them Sliding or falling - hasn't became of me though.
• away-road, they are OK, but not great. You have much more confidence, you have to keep the wits.
• Plus, the circles can turn out to be chocked with lawn and dirt - which tends to make them less efficient.

  Kahtoola MICROspikes®

What they say:   Just believe – a pocket-sized glaciers grip Program that tends to make any terrain, any duration of 12 months, possible. Kahtoola MICROspikes® grip Program aren’t just surges that search in – they’re your ticket to anyplace Journey requires you. When you don’t need a full-on crampon the MICROspikes® grip Program will get you in which you have to go with relieve and precision. The  slip-on enables you to Journey securely and rapidly throughout glaciers, scree, Snowfall-covered driveways, moist rubble and anyplace Otherwise you just need a a little bit much more grip.
My verdict: The pros

• I really feel 100% assured putting on Kahtoolas - even operating Alpine on glaciers.
• You can run.  Like correctly run.  No slippling or worrying about Sliding.
• away-road, they are much exceptional than Yaktraks.
• They wear with relieve.  And remain on, really securely.
• I've only noticed great reviews about Kahtoolas - and no items faults.
• They made operating on thick glaciers an Complete pleasure - honest!

The cons

• They are a little bit as well intense for pavements or slim glaciers. I liken it to operating in a lower coat, when all your need is a lengthy sleeved tee.  They have out much better on nastier ground.
• You need a backpack to transportation them on a run. You could adhere them in coat pockets, but you'll be rattling about like the ghosting of Xmas past!
• They're not precisely cheap, selling at about £45-£50.

In summary:  I would use (and recommend) both.  They are well worth the investment.  You can't put a cost on security and remaining injuries totally free - and away the treadmill!  If you can only pick 1 or the other, then it's greatest choose in which you will do most of your winter season operating.