do swim goggles make a difference????/?
ok so im useing speedo jammers and i see there helpign ALOT, i also have a swim cap but im not sure if i even need it casue my hairs sorta short anyways, now i was thinkjign do my goggles make a differce? like by how much, for example how many seconds might i go faster if any faster? and also wht goggles are really good and where can i buy them