Arcteryx designs for use in true alpine conditions. Exceptionally versatile, hardwearing and warm, the Thorium AR Jacket performs as a cold weather midlayer and as a standalone. The Thoriums regular fit is streamlined and layers easily under a hardshell in cold conditions. Lofty 750 fill European grey goose down gives incredible warmth for little weight, is durably resilient, and packs easily. The outer is updated with durable and subtly textured Arato 30 nylon. This lightweight material withstands abrasion, packs compactly and has a DWR finish to repel moisture. Arcteryx Down Composite Mapping technology combines the goose down insulation with panels of Coreloft synthetic insulation in the collar, cuffs and under the arms, areas prone to moisture. Down is used in the sleeves and around the bodys core. The Thorium is equipped with a tall collar to seal out drafts, two zippered pockets secure small essentials and updated to include an internal zipper pocket with a stuff sack.

• THORIUM Versatile down insulated mid layers that provide durable warmth
• Light by construction
• ALL ROUND High performance weather protection and materials, emphasizing versatility for multiple activities
• ESSENTIALS Versatile high performance designs for diverse activities and conditions
• DOWN INSULATION Highly efficient natural insulation that compacts well and offers excellent warmth to weight.