day in and day out , these be the swim add on that I can not live without as I now feel as if my hand be build as they should be for swimming . after all , this be what creature from other species who be build to swim be give as part of they dna code . webbed paw , what more could I wish for in the water ? these be perfect for every swimming stroke : side stroke , crawl , breast stroke , all back stroke , underwater swimming . I do not even bother take they off for surface diving . my hand and arm be so much stronger after swim with these daily . it be the easiest thing to add into any water workout and feel part of you body from day one .