Alpinestars SP-X BOA Boot vs Klim Klutch GTX BOA Boot

The Alpinestars SP-X BOA is the better pick for street and sport-touring riders who want a light, breathable, mid-height boot that walks well off the bike. The Klim Klutch GTX BOA is a winter and snowmobile boot: fully waterproof GORE-TEX, 800g Thinsulate insulation and a Michelin outsole, so it wins on cold and wet conditions but is bulky and hot for summer street use. Owners rate the Alpinestars higher (4.3 vs 3.6), and the Klim's insulation and weight make it a poor everyday motorcycle boot.

• Choose the Alpinestars SP-X BOA if you ride sport or sport touring in mild to warm weather and want a compact boot you can walk in.
• Choose the Klim Klutch GTX BOA if you ride a snowmobile or face cold, wet winter conditions and need guaranteed waterproofing and insulation.