Gym top with holes in the sleeves for my thumbs

[LordPalmerston]

I bought this in 1066 ages ago on H and M online and it finally arrived. Its really nice long sleeved cover up for the gym but what is with the thumbholes?

www.hm.com/gb/product/15190?article=15190-A

ooh look it even mentions them as a USP!

It's a running top?

Why

Why thumb holes needed ?

We used to make our own thumbholes in our school jumpers.

It's to keep your hands warm when running in the cold weather.

Lol at school

Ah!

I love thumb holes in my running tops. I get too hot with gloves and end up having to carry them on my run.

Yep, keeps you a bit warmer.
I use these for my work outs outside. Just push them up when I'm warm.

I have a load of outdoor tops like this from Berhgaus and The North Face.
Got them years ago. It's not a new thing.

Makes you run faster (true fact).

Ooh I like! But can I cope with the delivery wait...

I have a couple with thumb holes. I must have orangutan arms because they are never quite long enough and the sleeves pull whilst running. Annoying, I never use them (the holes).