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4.7/5 | 3,731+ reviews

Sienna | Women's Oversized Cashmere Turtleneck Longline Knit Jumper

Regular price £72.00 Sale price£35.95 Save 50%
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Free delivery across the UK
30 Day returns and exchange
20,000+ Satisfied Customers
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Summer Sale Update: Due to high demand during our Summer Sale , only a few units are in stock! If you can still click 'Add to Cart,' it’s still available.

This Women's Oversized Cashmere Turtleneck Longline Knit Jumper is your go-to choice for staying warm and effortlessly stylish through the colder months. Cut in a relaxed, oversized silhouette with a ribbed turtleneck collar and asymmetric hem, it suits anyone seeking cosy everyday comfort without sacrificing a polished look.

Why You'll Love It

  • Cosy Ribbed Turtleneck: The high, ribbed collar wraps the neck in warmth, keeping draughts out on cold days without feeling restrictive.
  • Relaxed Oversized Fit: The generous, drop-shoulder cut allows easy layering over thermals or a fitted long-sleeve top, with ribbed cuffs that keep sleeves neatly in place.
  • Versatile Longline Hem: The asymmetric, dipped hemline adds a contemporary edge and pairs effortlessly with slim-fit jeans, leggings, or tailored trousers.

Perfect For

Wear it with skinny jeans and ankle boots for a relaxed weekend look, or layer it over a slim roll-neck for brisk morning commutes. It works equally well on a cosy night in, a casual lunch with friends, or a low-key day at the office during winter.

Care Instructions

  • Hand wash or machine wash on a delicate cycle at 30°C.
  • Do not bleach or tumble dry.
  • Lay flat to dry to maintain shape.
  • Cool iron on reverse if needed.

Frequently Asked Questions

Is this jumper true to size or should I size up?
The jumper is designed with an intentionally oversized, relaxed fit. If you prefer a more fitted look, you may wish to size down, but for the classic oversized style shown, order your usual size.

Does it have side splits or an open hem?
Yes, the longline hem features an asymmetric, dipped design with open side vents, giving it a contemporary silhouette that pairs well with slim-fit jeans or leggings.

What sizes are available?
The jumper is available in S, M, L, XL, and 2XL.

Size Chart (in)

Size Length (in) Bust (in) Shoulder (in)
XS 25.6 32.3 13.0
S 26.0 33.9 13.4
M 26.4 35.4 13.8
L 26.8 37.0 14.2
XL 27.2 38.6 14.6
2XL 27.6 40.2 15.0

If you're unsure between sizes, always go one size up. This ensures maximum comfort while maintaining a great fit.

We are offering free shipping within UK for all orders.

We ship our packages with a Track & Trace code so you can always monitor your order.

You will receive the Track & Trace code via email within 1-24 hours after placing your order

If our product does not meet your expectations, you can return it within 30 days upon receipt.

Before returning the goods, please contact our customer service at support@fletcherandblackwood.com and let us know the reason for the return so we can process your request correctly.

Loved by women across the UK

★★★★★

“The package arrived safely and looked beautiful. Very happy with my order.”

Janice L.
London - 9 hours ago
★★★★

“My dress arrived quickly and fits beautifully. Fletcher & Blackwood feels so easy to shop with."

Anna M.
Coventry - 1 day ago
★★★★★

“I ordered the wrong size at first, but Fletcher & Blackwood helped me find the right fit quickly. Very happy in the end."

Maeve D.
Belfast - 3 days ago
★★★★★

“I ordered the wrong size at first, but Fletcher & Blackwood helped me find the right fit quickly. Very happy in the end."

Victoria C.
Aberdeen - 1 week ago
★★★★★

“I had a question about my order and it took a little time to sort out, but customer service was helpful and made things right.”

Agnes E.
Chester - 1 week ago

Money-Back Guarantee

We truly believe in the quality of our clothing – and we're confident you’ll love it too. That’s why we offer a hassle-free 30-day money-back guarantee.

If you’re not completely satisfied with your purchase, simply return it within 30 days and receive a full refund – no questions asked.

Founded by Two Sisters

Fletcher & Blackwood was founded by two sisters in the UK with one simple belief: women deserve to feel comfortable, confident, and beautiful in what they wear.

They wanted to create a place for women who felt that fashion had become too focused on trends, and not enough on how women actually feel — the feeling of softness, ease, confidence, and quiet elegance.

That is why every piece at Fletcher & Blackwood is chosen to flatter gently, feel comfortable on the body, and bring back that lovely feeling when you look in the mirror and feel good again.

For the sisters behind Fletcher & Blackwood, fashion is not about changing who you are. It is about helping you feel like yourself again — feminine, valued, comfortable, and confident.

Fletcher & Blackwood was created for women who deserve to feel good every single day.

With love,
The Sisterhood Fletcher & Blackwood

FREE DELIVERY

We offer free shipping incl. Track & Trace to the United Kingdom

30-DAY MONEY-BACK GUARANTEE

We offer a 30-day return period. Feel free to return any item within 30 days if you are not completely satisfied.

SECURE PAYMENT

Your payment information is processed securely. We accept Apple Pay, Google Pay, Mastercard, Shop Pay, and Visa.

FAQs

Yes, we ship in United Kingdom with Royal Mail, for the fastest and most reliable delivery. Free express shipping in all orders.

No, we do not store your payment details. All payment processing is handled securely by trusted third-party providers.

You can reach us via our support email support@fletcherandblackwood.com Our team typically responds within 24 hours.

You can return items within 30 calendar days of receiving them.

Return shipping costs are the buyer’s responsibility.

Approved refunds will be issued to your original payment method.

Orders are typically processed within 3 business days after being placed.

Once your order is confirmed, you will receive an email with your order number. To track your order, simply visit our order tracking page and enter your order number or email address.