I ordered the Speedo Endurance Jammers, in Navy, from Amazon, which were dispatched by Millet Sports, arriving two days after the order was placed, (Royal Mail do deliver on a Saturday), which I found rather impressive.
Given the speed of delivery, I was pleased to be able to use them later that day, at my local pool, which offers 50m lane swimming on a Saturday afternoon, thus allowing me to really put the Endurance Jammer to the test.
As for the product itself, I was pleased to discover that it felt comfortable both in and out of the water, fitting well around the waist and not pinching around the knees, unlike other, more expensive Jammers I've purchased.
Despite mouldling tightly to the legs in the water, the jammers provided an impressive level of flexibility, which I found re-assuring, as my breastroke kick remained uninhibited, thus allowing me to glide up and down the pool with speed and confidence.
In the three subsequent swimming sessions since, I've chosen the Endurance Jammer over other, more expensive Jammers in my collection, such is its superior feeling of comfort and body holding in the water.
For those who particpate in swimming regularly, I'd happily recommend the Endurance Jammer, since it provides superb value for the price at which it's sold.