comprises a first flap fastening portion 504 mounted on a frame 506 the frame may be a flexible material such as a vinyl sheet the items may be held together by stitching gluing or other suitable joining means fig5 b shows the bottom of a flap 510 said flap is to be hingedly joined to said sheet said flap comprises back to back transparent windows 512 514 held together in a frame 516 to form a flap pocket said flap pocket is transparent therethrough so that sheets held therein can be viewed from one side or the other said flap comprises a second flap fastening portion 518 that corresponds to said first flap fastening portion fig5 c shows a detachable wrist coach 520 comprising a sweatband 302 a detachable sheet 500 and a flap 510 the detachable sheet is shown above the sweatband the flap and detachable sheet are joined together by a hinge 526 and said flap fastening portions 504 518 fig5 d shows the detachable wrist coach 520 of fig5 c with the detachable sheet 500 attached to the sweatband 302 and the flap 510 open in order for the user to open the flap without removing detachable sheet from the sweatband the peel strength of the flap fastening portions should be less than the peel strength of the sheet fastening portions this can be accomplished by having the flap fastening portions have a more narrow width 522 than the width 524 of a sheet fastening portion the flap fastening portion may also have a smaller area than the sheet fastening portion the unit peel strength of the flap fastening portions can also be less than the unit peel strength of the sheet fastening portion unit peel strength may be expressed as newtons cm fig6 a through.