The Abisko Trek shirt includes 16% elastane, making for great stretch. In addition, the fabric transfers moisture and dries very fast when needed. Thanks to the collar's structure, it's easy to lift up for protecting your neck from sunshine. - Regular Fjällräven fit - The fabric works great in warm and hot conditions - Raglan sleeves: your backpack's shoulder straps don't have seams where the pack puts its pressure - One pocket - Center back length 68 cm - Machine wash at 30ºC Abisko series Fjällräven products sit firmly in the Trekking part of the Fjällräven product hierarchy. They emphasize light weight, and are best at home on dayhikes and cabin to cabin trekking. Thanks to its tidy looks, the Abisko Trek Shirt is also right at home in more everyday oriented wear.