If you're looking for ultra warmth, you found it with this kids' zip-t base layer! Microfiber polyester yarns make this fabric so soft to the touch for warmth without weight. This patterned youth thermal is durable and breathable make this a great choice for layering without bulk. This kids' zip-t base layer is printed on the face and feels like your favorite soft flannel. Features: Youth zip-t base layer adds billowy warmth without weight Moisture Transfer Fibers for moisture management Zip through collar with rubber tip zipper Sublimated prints retain vibrant color and fabric properties Microfiber polyester is exceptionally durable Flat seam construction for seam strength and longevity Wind and water resistant by construction Midweight, relaxed fit Style HC4120P Warmth factor 8 out of 10 Lightly brushed inner, velvety fleece outer face for warmth in cold conditions. Relaxed fit Designed with a looser fit that lies gently on the skin without binding.