Sure enough, our wardrobes are once again in need of a transitional makeover. At this time of year, knit is always a bestseller, so its no surprise that Arkets much-loved Alpaca-Wool Blend Jumper, £87 has already reached viral status - and is quickly selling out.

　　Dubbed the must-have of the season, shoppers claim it truly is the perfect jumper. Not only does it have endless styling potential, but its alpaca wool blend will keep you seriously toasty during the inevitable cold snap. While it originally came in eight variations, only five are still available due to high demand, including black, grey, lime, beige and white.

　　At £87, the jumper is a serious investment which is why we were thrilled to find a cheaper alternative on the high street. Currently trending, River Islands Oversized Knit Jumper, £40 combines an alpaca and wool blend, making it the ultimate dupe to rival the Arket original - and thankfully, its £40 less.

　　©river island River Islands jumper comes in four wearable colours - cream, lime, pink and purple, perfect for wearing day to day.

　　We particularly love the cream colourway thats ideal for versatile dressing, one that you can wear to the office or to brunch with the girls. It has a flattering crew neckline and a cosy oversized fit making it the ultimate jumper for autumn/winter.

　　As its hot on the heels of Arkets Alpaca-Wool Blend Jumper, we highly recommend adding it to your basket while you still can. We predict that the affordable alternative will quickly sell out. Shop River Islands Oversized Knit Jumper below.

　　1. SHOP: River Islands Oversized Knit Jumper

　　River IslandPrice:40

　　View offer Samantha Price is a Senior Commercial Content Writer for Closer. During her time at Bauer, she has worked on several projects, from championing the Closer newsletters to writing expertly crafted buying guides on beauty, fashion and lifestyle.