First of all THANK YOU to everyone who recommended tube skirts here - would never have tried them. ANYWAYS.... was in Oasis yesterday and saw this knitted version on a 5 ft 5 girl like me it comes nicely to below the knee but it's AMAZING. tempted to get another one. and I swear it makes me look slimmer. 
anyway if you want a new warm skirt (I'd dress it for work and weekends, good for mums too I think) look no further £25 in Oasis and if you're in Debenhams and they've got the concession (I couldn't wait!) 20% off this week!
www.oasis-stores.com/knitted-tube-skirt/skirts/oasis/fcp-product/3640004301