Icebreaker Size Chart A lightweight men's merino wool base layer shirt, the 200 Zone Long Sleeve Crewe features strategic mesh panels for active ventilation. he LYCRA(R) and Merino Wool material is highly flexible, with raglan sleeves and underarm gussets for excellent arm mobility. It's cut in a sleek, slim fit with a dropped front and back hem for additional coverage. Features: - LYCRA(R) content for stretch and mobility - Zoned body mapping technology for optimal thermal regulation - 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: 75.9cm/30" size L - 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