Buy on Amazon.co.uk : http://www.amazon.co.uk/gp/product/B008RQFJV4?tag=animalisimo04-21
ASICS TRAIL Short Sleeve Half-Zip T-Shirt - Small
Mesh Panels - Under your arms and at your back design to encourage air flow and keep sweat away from your skin
Half-Zip - For a more comfortable fit and to help regulate air flow
Flat-Lock Stitching - To prevent chaffing
Pockets - Lower side zipper pocket and side envelope pockets
Anti-Slip Rubber - Hold your backpack in place with these durable rubber grippers on each shoulder