arena ULTIMATE AQUAFORCE - Brand: arena - Color: Blue - Size: 150 Thank you for viewing. This is an AQUAFORCE in size S. It has been worn about 10 times. It appears to have no tears or stains. The FINA mark is also clean. For those looking for a bargain spare, or those who want to try out the size of arena's high-speed swimwear, how about giving it a try? Please understand that this is a used item before purchasing.