Fjallraven Abisko Winter Stretch Trousers in Deep Forest. Hardwearing winter trousers in a double weave, four-way stretch polyamide/polyester blend with brushed inside for extra warmth and comfort. Abisko Winter Stretch Trousers for men have unrivalled freedom of movement and excellent durability, making them suitable for all kinds of outdoor winter adventures. Articulated knees and a tapered cut with leg endings that have zippered gussets that can be opened to fit over boots. Zippered hand pockets and a zippered security pocket in side seam.