Black Diamond's popular Mercury Mittens feature a fully waterproof shell and a removable split finger liner for increased dexterity. The liner is waterproof and insulated with PrimaLoft Gold, making these mittens versatile enough for year round use.This product will be shipped directly from Black Diamond and will leave their warehouse in 2 3 business days. Eligible for UPS ground shipping only. . Temperature range: 2010degF 29 12degC. Lightweight, abrasion resistant, Pertex Shield waterproof, breathable shell fabric with 4 way stretch. 100% waterproof BDry insert stays with removable liner to keep hands dry. Removable liner with split finger design: Insulated with a combination of 340 g PrimaLoft Gold insulation and high loft fleece. PrimaLoft Gold synthetic insulation provides heat trapping warmth that insulates even in the wettest weather maintains 96% of warmth when wet breathable, packable, and incredibly soft. Goat leather palm, plus palm patch with Kevlar stitching.