Grivel has updated its classic G10 mountaineering spikes with a more secure heel spring called the Moletta, which locks the crampons down in the rear, so there is no accidental disengagement between the boot and the ’pon. The Moletta is also completely tool-free and “easier to adjust than other spring-pin systems I’ve used,” said one tester. The G10 maintains a huge size range from a men’s 14 down to a women’s 6, so it’s truly a one-size-fits-all. The chromoly steel is coated with a clear plastic to prevent corrosion, and new plastic parts on the cuffs and heel bail were redesigned to fit a wider range of boot shapes. With semi-automatic and step-in binding options, these are excellent crampons for all alpine adventures. Bonus: they’re $10 cheaper than the previous version.