This baselayer will serve you from August antelope to spring shed hunts. 100% merino construction fends off odor for multi-day use. The Hoplite Merino crew features a 150gsm weight- light and breathable enough as a stand-alone warm weather piece or as a base layer under insulation in colder weather. 50 UPF protects your skin from the sun and natural antimicrobiality reduces odor for multiple days of concealment in the field. Pair this with the Hoplite Merino Bottoms for a great thermoregulating system.