About the Shimano XC5 SPD Cross-Country MTB Shoe The XC5 is from Shimanos high-performance light weight line of cross-country SPD MTB shoes. All its features are optimised for covering distance across varied terrain at speed. It features a rigid glass-fibre reinforced sole for optimal power transfer & the BOA micro adjustment system often seen on high performance road shoes. The overall low weight (only 298g) gives them a marked efficiency boost over heavier MTB shoes. Reinforced spike mounts give you the ability to attach 18mm spikes, essential for extreme muddy conditions. Key Features Low stack height midsole helps stabilize foot, maximizes power transfer & efficiency Surround wrapping upper structure reduces overlap, provides Glove-like fit Mesh/TPU/ Synthetic leather composite upper provides comfortable fit & better breathability Boa L6 dial for quick & precise micro-adjustment Glass fibre reinforced midsole for power transfer Exclusive MICHELIN high-traction, mud-shedding tread pattern outsole Reinforced spike mount for extreme conditions, 18 mm spike option Cycling Shoes Buying Guide