The Icebreaker Merino Blend 260 ZoneKnit Seamless Bra is a premium base-layer bra designed for active use in colder conditions. It stands out for its seamless construction and body-mapped ventilation, making it both comfortable and breathable. The merino blend feels soft on the skin and helps regulate temperature well during workouts. Support is medium, which works best for low- to mid-impact activities. Overall, it’s a reliable choice if you want warmth, comfort, and odor resistance in one piece.