this is the 2010 model and its a -10

fold-over collar Perforated collar stand improves breathability and comfort Heathered jersey fabric stretches for improved mobility Dri-FIT technology dries sweat quickly Shoulder seams are rolled-forward for ease of motion Standard fit

Ice Fits effortlessly inside Ergonomic grip allows for even more on-the-go ease

Great quality choice for a great price and a nice bright color

New Under Armour Men HeatGear Sonic Compression Sleeveless Top Small GrayWht new in wrapper! this is the 2010 modelFitted: Next to skin without the squeeze Ultra soft, smooth fabric provides extreme comfort with very little weight 4 way stretch fabrication allows greater mobility and maintains shape 30+ UPF protects your skin from the sun's harmful rays 90% Polyester 10% Elastane