The HiO MerinoGrid Long Sleeve takes a hybrid approach to performance knitwear, pairing a stretch nylon-elastane face with merino wool woven into the back. The nylon face delivers 100% shape recovery and a friction-free feel against the skin, while the merino forms raised 3D nodules that lift the fabric away from the body, creating loft and warmth without trapping heat. Designed with ski touring and trail running in mind, it includes pit venting perforations, watch windows on each sleeve, and thumb loops to keep it functional during high-output activity.
Nylon-elastane face with 100% shape recovery
Merino wool back with 3D nodule construction for loft and air circulation
Moisture-wicking and odor-resistant merino placement