Trail / Fell runners

I just completed the Tough Guy 'Nettle Warrior' just last week - AWESOME!

Don't know much about fell running shoes, sorry. But you'll need to comfortably run 3 hours. Over mental terrain. Reason being, as the bloody obstacles are insane... They'll REALLY take it out of ya!

Just make sure they aren't too spiky. And the have to be rubber, NOT metal. Otherwise you'll get disqualified... Bad times.

Weight training will help too - legs in particular.

Now you've been warned!

I'm a Salomon xa pro 3d ultra junkie, have been for years, use them for everything including mtbing. Brilliant comfort, brilliant lacing design, brilliant breathability. Downside is the soles can wear quickly (no surprise in my case though) - so with that in mind if use the speedcross 2s for their intended purpose (like don't go road runnin' every other night) and stick to that, the soles will last you and do the job.

Like bikes, It's a good thing to go and try a few pairs ona nd see what works.

For fell i've got a pair of Walshes, they are very good for grassy climbs/descents and shallow mud. They do come unstuck in thick mud [cack for lap based xc events] and don't offer much grip on rocks. The support is also limited, and the material thin; to such an extent i'd actualy call them socks with grip. I find them comfy though.

Most of my running mates have the inov8 mudclaw for fell, you get better support around the ankle and the grip is much more suited to all environments, which makes them a brilliant all round fell shoe. The only issue my mates find with them [and that i find with my rocklite trail shoes] is that the material can become worn at the back of the heel, which can cause really bad blistering on your heel.