The men's Singi is timeless knitted lambswool sweater made for long treks in crisp weather and as warm and breathable middle layer under a shell jacket. The knit insulates through trapping air, while the rugged wool construction remains warm even when damp. Lambswool wicks away moisture, making the Singi an ideal piece during high endurance pursuits. The shoulders are reinforced with durable G-1000, which helps reduce friction and abrasions when worn with a backpack. Fjällräven also reinforced the elbows with knitted patches.