The Bergtagen Thinwool SS is a great all day next to skin layer for a vareity of activities. Fjllrven says:As the lightest first layer in the Bergtagen series, this high-performance t-shirt is perfect for spring and summer days spent in the mountains. Engineered from a lightweight jersey knit that combines the thermal and moisture-wicking properties of merino wool with the strength and durability of polyamide. It will keep you warm when its cold, and comfortably cool on really hot days. Active fit with good freedom of movement.Our VerdictFjallraven’s Bergtagen Thinwool SS is a high-quality merino wool base layer that excels in variable conditions. It will keep you warm on those early starts and chilly summits while keeping you cool on the hike up.The active fit provides a good balance between the skin-tight products on the market without sacrificing the wicking ability by being too loose fitting. This sits in the perfect middle ground which is why I use this piece for a range of activities.The merino wool feels great next to skin while the stitching method Fjallraven have used reduces any irritation in high movement areas.- Reviewed by Ultralight Outdoor GearTrek Scotland Review – Fjallraven Bergtagen Thinwool SSFeaturesHigh-quality jersey knit in merino wool and polyamide.Wicks moisture away and warms even when dampNatural resistance to bad odoursActive fit with good freedom of movementTraceable, ethically produced merino woolSpecificationsSmall weighs: 146gMedium weighs: 156gLarge weighs: 166gMaterials87% merino wool, 13% polyamideHelp & advice:The Ultimate Guide to Lightweight BaselayersThe Benefits of Merino Wool

The Bergtagen Thinwool SS is a great all day next to skin layer for a vareity of activities. Fjllrven says:As the lightest first layer in the Bergtagen series, this high-performance t-shirt is perfect for s