Men's Thermal Underwear Set - Double-Layer Fleece Lined Long Sleeve Turtleneck Base Layer (4 Colors) | Ultra-Warm & Moisture-Wicking Winter

Arctic-Grade Warmth Without Bulk​​ Survive Stockholm winters with ​​dual-layer Dralon® technology​​ – the inner plush traps body heat 37% more efficiently than wool, while the outer mesh wicks sweat during sudden temperature shifts in Parisian metros. ​​Engineered for Extreme Comfort​​ ✔ ​​Seamless Freedom​​ – Flatlock stitching prevents chafing under ski jacket straps ✔ ​​Strategic Ventilation​​ – Laser-cut pores behind knees/elbows prevent overheating ✔ ​​Full Mobility Design​​ – 4-way stretch accommodates squatting to shovel snow ✔ ​​Odor Defense​​ – Silver-ion treatment inhibits bacteria for 72-hour wearability ✔ ​​Size Democracy​​ – 5XL fits 46" chests without riding up when lifting luggage ​​From CrossFit to Cross-Country​​ ​​6AM​​: ​​Black base layer​​ stays invisible under dress shirts during Helsinki business meetings. ​​Noon​​: ​​Charcoal version​​ regulates temperature during Oslo fjord hikes. ​​9PM​​: ​​Camel color​​ pairs with loungewear for Montreal apartment hygge time. ​​The Invisible Shield​​ This isn't just underwear – it's ​​climate control armor​​. The ​​espresso brown​​ resists pilling after 50 washes, while the thermal performance remains consistent down to -15℃. Layer under flannel shirts or wear solo for late-night dog walks.