here is another pattern for a cozy. this one im going to have to reknit becasue my daughter in law stoll it (lol) before i could get a pic.
Diagonal Rib Cozy
1 set of size 6 us double pointed needles
1 set of size 4 us double pointed needles for the i-cord
1 stitch marker
1 tapestry needle
1 ball of 100% cotton worsted weight yarn
Cast on 17 stitches on 2 needles and 18 stitches on 1 needle for a total of 52 stitches. Make sure you leave a long tail for later.
Put the stitch marker between stitches 1 and 2 to mark the new row
Row 1 - *k2, p2; repeat from * to end
Row 2 - repeat row 1
Row 3 - k1, *p2, k2, repeat from * to last 3 sts, p2, k1
Row 4 - p1, *k2, p2, from * to last 3 sts, k2, p1
Row 5 - *p2, k2; repeat from * to end.
Row 6 - repeat row 5
Row 7 - repeat row 4
Row 8 - repeat row 3
Repeat these 8 rows 5 times for a total of 40 rows
Row 41 - *k2, yo, k2tog, k2; repeat from * around to end
Row 42 - *k2, p2; repeat from * around.
Bind off weave in end on top
With long tail run around bottom of stitches pull tight. Sew up hole then weave in end.
Make an I-Cord about 22" long weave in ends at both ends of the I-cord. Run the I-cord in and out the holes on top and then tie and knot in each end. Put your drink bottle, can or glass in and tie it so the cozy doesnt slip off and enjoy