I recently bought LaSportiva extreme something or other - very light with vibram soul and gortex and 1 year guarantee. Use them for rec climbs and training mainly. Did a hairy limb removal and they worked well and footocked easily. I wouldn't use them working everyday and expect them to last a year, but the soul and toe cap etc. are guaranteed apparently - use low cut Viburgs for day to day spurs and spurless, but I have to swing a shovel too from time to time so need a steel shank. Viburgs are indestructable and can be re-soled, but weight a ton. I think most of Canada requires steel toe or CSA for tree work, especially with chainsaws.