Icebreaker Size Chart A lightweight women's merino wool base layer shirt for year-round active outdoor pursuits. The 200 Zone Long Sleeve Crewe features strategic mesh panels for improved ventilation. Flatlock seams create a smooth, chafe-free fit, and the underarm gusset design encourages full freedom of movement. Features: - LYCRA(R) content for stretch and mobility - Strategically placed merino mesh for ventilation - Flatlock seams prevent chafing - Raglan sleeve construction for mobility - Underarm gusset for comfort and mobility - Dropped front and back hem for added coverage - Fit: Slim - Center back length: 70cm/27 3/4" size M - Fabric: Body: 96% Merino Wool, 4% LYCRA(R) / Eyelet: 98% Merino Wool, 1% LYCRA(R), 1% Nylon - Alternate images show different colorways, yet accurately display product features