With the Under Armour Base 4.0 Crew Top it just keeps getting better. The Base 4.0 Top is made to keep you amazingly warm with a construction of flatlock stitching and ergonomic seam placement for a close to the skin streamlined fit without the squeeze of compression. The Under Armour performance fit, technology for freshness and 4 way stretch provide you with all the comforts of ease of movement and the additional warmth needed to keep you practicing your sport as you cope with the undesired cold winds blowing your way. [+]