Rainleaf Microfibre Towel The Rainleaf Microfibre Towel ($10) has over 2,000 five-star reviews on Amazon, praised for its superabsorbent and fast-drying qualities. Use it to quickly towel off after finishing the pool portion of your workout. The medium — 20 x 40 inches — will only set you back $10. Image Source: amazon.com Rainleaf Microfibre Towel $10 from amazon.com Buy Now