Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 Oaka Instruments Organic T-shirt £25.00 Oaka Instruments organic heavyweight cotton t-shirt.Unisex relaxed fit and printed with eco-certified inks. Size: Select Size Small Medium Large XL Color: Select Color Desert Sand Forest Green Red Earth Slate Green Quantity: Add To Cart Added! Oaka Instruments organic heavyweight cotton t-shirt.Unisex relaxed fit and printed with eco-certified inks.