Deerhunter Climate Half-Zip Fleece With 37.5 TechnologyDeerhunter Climate Half Zip Fleece With 37. 5 Technology The Deerhunter Climate Half Zip Fleece integrates advanced 37. 5 Technology to regulate body temperature at an optimal 37. 5C, enhancing thermal comfort during active use. Constructed with stretchable ribstop fabric strategically placed on the shoulders, front pockets, and elbow patches, it ensures durability and flexibility in high wear areas. The design features a zip neck for adjustable