Will Asda's £6 bottom-boosting briefs REALLY give you a Kim Kardashian behind? FEMAIL tests the best-selling pants

Sales have risen 4,600 per cent online and 917 per cent in store this week - with smaller sizes proving most popular.

Want a rear like Kim Kardashian's? We tested products that say

Kim Kardashian's Skim Underwear Brand Doubles Valuation to $3.2

Take that, haters: Kim Kardashian's Skims just doubled in value to

Kim Kardashian's bum could be all yours - a curvy rear for £6 from

Does my bum look bigger in these? M&S hopes to cash in on 'Kim

Want a rear like Kim Kardashian's? We tested products that say

Kim Kardashian shows off her abs and curves in SKIMS underwear

Kim Kardashian shows signature curves as she strips down to

How shapewear sparked a billion-dollar underwear war

Want a rear like Kim Kardashian's? We tested products that say

Femail reveals the best nightwear trends this season