The fingers and knuckles are heavily insulated with a windblocker fleece, and the palm is also well insulated with a stitched Primaloft insulation. However from the knuckles back, it is lightly insulated and has a windblocker layer. This makes the fingers very warm yet fit well into any pole strap. This is the perfect glove for those who want an especially warm performance 5 fingered glove.