The Ameristep chair blinds I posted have backrests, armrests and drink holders. The window flaps hold shut or in place (partially shut) with sewn in magnets instead of stupid velcro. The blinds with velco are S-T-U-P-I-D. Maybe they couldn't find anything noisier.

I love my chair blinds. They offer alot of pluses. Keep wind off you. Keep rain or snow off you. And keep some heat in.