Overview: Unique design, stylish and beautiful. Good material, comfortable to wear. A variety of colors, more choice. Product information: Fabric name: chemical fiber blended Fabric composition: Polyester fiber (polyester) Fabric composition content: 100 (%) Lining name: Chemical fiber blended Lining composition: Polyester fiber (polyester) Lining ingredient content: 100 (%) Style: Leisure sports Function: Smart heating Filling: Down cotton Collar type: Stand-up collar Applicable scenes: Running sports, sports trends, cycling sports, ice and snow sports, extreme challenges, hiking and camping Color: Black two-zone heating, blue two-zone heating, red two-zone heating, camouflage two-zone heating, black four-zone heating, blue four-zone heating, red four-zone heating, camouflage four-zone heating, black eight-zone heating, blue Color eight-zone heating, red eight-zone heating, black nine-zone heating, blue nine-zone heating, red nine-zone heating, camouflage nine-zone heating, black 11-zone heating, blue 11-zone heating, black five-zone dual control, Blue five zone dual control, black nine zone dual control, blue nine zone dual control, black eleven dual control 2, blue eleven dual control 2, red nine zone dual control, power bank Size Information: Size: S, M, L, XL, XXL, XXXL, XXXXL, 5XL Size Length Shoulder width Bust Hem S 63 39.1 51 41 M 65 40.3 53 43 L 67 41.6 55 45 XL 69 42.7 57 47 XXL 71 43.9 59 49 3XL 73 45.1 61 51 4XL 75 46.3 63 53 5XL 77 47.5 65 55 Note 1. Asian Sizes Are 1 To 2 Sizes Smaller Than European And American People. Choose The Larger Size If Your Size Between Two Sizes. Please Allow 2-3Cm Differences Due To Manual Measurement.  2. Please Check The Size Chart Carefully Before You Buy The Item, If You Don't Know How To Choose Size, Please Contact Our Customer Service. 3.As You Know, The Different Computers Display Colors Differently, The Color Of The Actual Item May Vary Slightly From The Following Images. Packing list: Smart vest*1