I searched for a couple days online trying to find a simple and easy crochet pattern for wristwarmers. I didn't end up finding one for worsted weight that I liked, so I took the pattern from "Family of Mittens" by Lionbrand and chopped and experimented and finally made it so that I liked it. These wristwarmers will fit a small to medium sized hand. In any case, here is the pattern. Please excuse my terrible pattern-writing skills, as this is my first one.
I used a 5.5 mm hook. I crochet quite tightly, so if you may have to alter your hook size. The upside is that it only takes an hour or so to make each one. These warmers are NOT done in the round.
Leaving a 10" tail for sewing, ch 20.
SC in 2nd ch from hook and in each ch across. 19 sts. TURN
Ch 1, sc in back loop of each sc across; turn.
Repeat 23 more rows. On last row, DO NOT TURN.
Working across top (long side) of ribbing, sc 21 stitches evenly spaced across (picking up anywhere you can); turn.
CH 1, sc in each sc across and increase by working 2 sc into each of 6 stitches evenly spaced; turn. There should be 27 stitches.
CH 1, sc in each st, turn.
Repeat for 7 more rows.
This lacy edge is optional, you could do any type of edging you wanted, of course. Another nice one is the scallop ch1, (5 HDC in next st, skip one) repeat across.
CH 1, (CH 4, skip 1 stitch, sc in next) repeat to end.
Fold in half length-wise, and sew up from bottom ribbing, leaving space for thumb-approx 1.5-2 rows up from beginning of ribbing. Leave 3.5-4 rows unsewn to accommodate thumb.
I also finished the wrist end with sc.
The pair shown was completed as a gift for a friend, made from Patons Classic 100% wool. Each warmer weighs approx .65 oz.