A fast and simple school aged kids knit, short sleeve, slim fitting suitable for over a long sleeved skivvy to keep the core warm, while still able to add another layer over the top

Has buttons in front to make it easy to slip over heads, no sleeves to get wet and mucky while playing.

Worked top down, flat until you form the sleeves, then you join in the round for the body, so no seams, just weave in the bottom end, and use the cast on tail to sew on the buttons

You can add a bit of colour work, or stripes have fun and knit a couple.

Colourwork pattern credit to Emily Dormier. on the size 7 project

To knit it on straight needles
Knit as per pattern to sleeve bind off and join centre front button bands, then cast on half +1 of underarm stitches each side of front and knit down to required length, working 1st and last st as knit each row, that’s the seam, repeat for back and sew up 2 side seams…