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Subscribe for 10% off your first order

Extended Returns until Jan 31st

Model wears L

Model wears L

Model wears L

KILLSTAR

Insomnia Longline Shirt

£20 £45

Earn 20 points for this product. 100 points is equal to £5.00.
Learn More

Size View Guide

Only 1 left!

XS

S

M

L

XL

XXL

INSOMNIA.

Dream but never sleep.

- Super Soft Fabric.
- Statement Print.
- Button-Up Front.
- Short Sleeves.
- Long Length.
- Fitted.

Channel some serious vibes in our 'Insomnia' longline shirt, with fitted lines to keep it smart with some killer details. In a soft fabric with collar, statement print on chest and sleeve, and some extra length.

Match with black trousers for an effortless but classic look.

Wash Cold - Gentle Cycle.

With KILLSTAR Branding, 74% Rayon, 22% Nylon, 4% Elastane.

Standard Delivery

UK

Orders over £75 - Free
Standard - from £3.99

International Delivery

Orders over £175 - Free
Standard - from £8.99

From our UK store, we currently ship to the following countries:

Armenia, Bahrain, Costa Rica. England, Faroe Islands, Guernsey, Iceland, India, Isle Of Man, Israel, Jersey, Kazakhstan, Kuwait, Lebanon, Mauritius, Morocco, Oman, Pakistan, Qatar, Saudi Arabia, Scotland, Serbia, South Africa, Tunisia, United Arab Emirates, Wales.

Read more about shipping

Extended Returns

Orders placed from 17th October 2025 until 23rd December 2025 are eligible for an extended return timeframe for store credit or exchange only. You can return items purchased within these dates up until 31st January 2026.

Standard Returns

You have 14 days* from the date you received it to pop it in the post and send it back to us for a refund, store credit or exchange.

When we receive it back to our warehouse we aim to process within 5-10 days from date of receipt.

*Exclusions apply. Learn more about non returnable items.

Read more about returns

Route Package Protection

Route's Green Package Protection is a package protection solution that helps cover your order in the event that your order gets lost, stolen, or damaged while in transit while also protecting the planet. We know how frustrating it is to have something happen to your order, so we’ve partnered with Route to offer added assurance that you’re supported, no matter what. Every time you add Green Package Protection to your order, Route donates to support an agroforestry initiative that removes CO₂ from the air and promotes a flourishing ecosystem.

Insomnia Longline Shirt

£20 £45

Size

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Standard Delivery

UK

Orders over £75 - Free
Standard - from £3.99

International

Orders over £175 - Free
Standard - from £8.99

US

If ordering to a US address, please order from our US website.

Read more about shipping

Pre-order Delivery

Products will ship in alignment with the dates advertised on the product page. Any changes will be communicated via email to the provided address during checkout. A flat shipping fee per item will be applied at checkout, in addition to any eligible shipping fees for your order: Domestic £3.99 per item & International £19.99 per item.

Read more about pre-orders

Package Protection

Route's Green Package Protection is a package protection solution that helps cover your order in the event that your order gets lost, stolen, or damaged while in transit while also protecting the planet. We know how frustrating it is to have something happen to your order, so we’ve partnered with Route to offer added assurance that you’re supported, no matter what. Every time you add Green Package Protection to your order, Route donates to support an agroforestry initiative that removes CO₂ from the air and promotes a flourishing ecosystem.

Extended Returns

Orders placed from 17th October 2025 until 23rd December 2025 are eligible for an extended return timeframe for store credit or exchange only. You can return items purchased within these dates up until 31st January 2026.

Standard Returns

You have 14 days* from the date you received it to pop it in the post and send it back to us for a refund, store credit or exchange.

When we receive it back to our warehouse we aim to process within 5-10 days from date of receipt.

Read more about returns

*Exclusions apply. Learn more about non returnable items.

Please note GIFT CARDS are non-returnable or exchangeable

Non-returnable

Please note this item is non-returnable or exchangeable.

COVEN products that have had their hygiene seal broken or removed are not eligible for return due to hygiene reasons.

Read more about returns

WHAT TYPES OF PAYMENT DO YOU ACCEPT?

T&C apply. Learn more about payment

CAN I PAY WITH US DOLLARS, EURO, OTHER CURRENCY?

All our prices are in GBP but you can pay in any currency.

DO YOU SHIP WORLDWIDE?

Yes.

CAN I CANCEL MY ORDER?

Yes - let us know as soon as possible via email or the contact us form.

CAN I CHANGE MY ORDER BEFORE IT'S SHIPPED?

No - orders can't be amended once placed.

WHERE CAN I TRACK MY ORDER?

Once your order has been dispatched, you will receive a tracking number which you can use to track your order.

HOW DO I MAKE A RETURN / EXCHANGE?

We offer 14 days return policy which you can see at www.killstar.com/pages/returns

HOW DO YOUR SIZES COMPARE TO OTHER BRANDS?

Our sizes are true to size and compare to standard sizes.

Our sizes are true to size and compare to standard sizing as follows:

Women's Clothing

Dress Size Conversion

	XS	S	M	L	XL	2XL	3XL	4XL
	8	10	12	14	16	18	18/20	20/22
	4	6	8	10	12	14	16	18
	36	38	40	42	44	46	48	50

Metric / Imperial Conversion

		XS	S	M	L	XL	2XL	3XL	4XL
Body Meas. Bust	CM	82	87	92	97	102	109	114	119
	IN	32¼	34¼	36¼	38¼	40¼	43	45	46¾
Body Meas. Waist	CM	64	69	74	79	84	91	96	101
	IN	25¼	27¼	29¼	31	33	35¾	37¾	39¾
Body Meas. Hips	CM	89	94	99	104	109	116	121	126
	IN	35	37	39	40	42¼	45¾	47¾	49½

Bra / Bikini Size Conversion

	XS	S	M	L	XL	2XL	3XL	4XL
Cup Size Range	30-34 A-C	32-36 A-C	32-36 B-D	32-36 C-DD	34-38 DD-F	36-40 E-G	38-42 F-H	40-44 G-HH
Equivalent To	34A 32B 30C	36A 34B 32C	36B 34C 32D	36C 34D 32DD	38DD 36E 34F	40E 38F 36G	42F 40G 38H	44G 42H 40HH

International Bra / Bikini Size

UK	US	EURO	FR
32A	32A	70A	85A
32B	32B	70B	85B
32C	32C	70C	85C
32D	32C	70D	85D
32DD	32DD	70DD	85DD
34A	34A	75A	90A
34B	34B	75B	90B
34C	34C	75C	90C
34D	34D	75D	90D
34DD	34DD	75DD	90DD
36A	36A	80A	95A
36B	36B	80B	95B
36C	36C	80C	95C
36D	36D	80D	95D
36DD	36DD	80DD	95DD
38A	38A	85A	100A
38B	38B	85B	100B
38C	38C	85C	100C
38D	38D	85D	100D
38DD	38DD	85DD	100DD
40A	40A	90A	105A
40B	40B	90B	105B
40C	40C	90C	105C
40D	40D	90D	105D
40DD	40DD	90DD	105DD
42A	42A	95A	110A
42B	42B	95B	110B
42C	42C	95C	110C
42D	42D	95D	110D
42DD	42DD	95DD	110DD

Footwear

Women's


3	36	5
4	37	6
5	38	7
6	39	8
7	40	9
8	41	10
9	42	11

Unisex


UK4	EU 37	US6	US5
UK5	EU 38	US7	US6
UK6	EU 39	US8	US7
UK7	EU 40	US9	US8
UK8	EU 41	US10	US9
UK9	EU 42	US11	US10
UK10	EU 43	US12	US11
UK11	EU 44	US13	US12
UK12	EU 45	US14	US13

Men's Clothing

Metric / Imperial Conversion

		XS	S	M	L	XL	2XL
Chest	CM	86	91	96½	101	106	111½
	IN	34	36	38	40	42	44
Waist	CM	71	76	81	86	91	96½
	IN	28	30	32	34	36	38
Hip	CM	86	91	96½	101	106	111½
	IN	34	36	38	40	42	44
Inside Leg	CM	83	83	83	83	83	83
	IN	32	32	32	32	32	32
Neck	CM	36½	38	39½	40½	42	43½
	IN	14½	15	15½	16	16½	17

Ring Sizes

	Diameter (mm)
US4	14.9
US5	15.7
US6	16.5
US7	17.3
US8	18.1
US9	18.9

Baby Bat

Baby

Age (Months)	0-3	3-6	6-9	9-12	12-18	18-24
Weight	6kgs	8kgs	9kgs	10kgs	11kgs	12.5 kgs
Weight	13 lbs 4 oz	17lbs 10oz	19lbs 13oz	22lbs	24lbs 4oz	27lbs 9oz
Height, CM	62	69	72	76	83	90
Height, IN	24 1/2	27 1/4	28 1/4	30	32 3/4	35 1/2

Girls/Boys

Age (Years)	2-3	3-4	4-5	5-6
Height, CM	98	104	110	116
Height, IN	38 1/2	41	43 1/4	45 3/4
Chest, CM	54	56	58	61
Chest, IN	21 1/4	22	22 3/4	24
Waist, CM	52	53.5	55	56
Waist, IN	20 1/2	21	21 3/4	22

One Size

Size recommendations vary per style. Please see product description for details.

INSOMNIA.

Dream but never sleep.

- Super Soft Fabric.
- Statement Print.
- Button-Up Front.
- Short Sleeves.
- Long Length.
- Fitted.

Channel some serious vibes in our 'Insomnia' longline shirt, with fitted lines to keep it smart with some killer details. In a soft fabric with collar, statement print on chest and sleeve, and some extra length.

Match with black trousers for an effortless but classic look.

Wash Cold - Gentle Cycle.

With KILLSTAR Branding, 74% Rayon, 22% Nylon, 4% Elastane.

At KILLSTAR, we design for eternal enjoyment. Shop pre-loved supernatural style at savoury prices and resurrect old favourites to earn 100% store credit. Together, we can be better to the planet by keeping products in circulation. Heavy style with a light footprint.

Sell it on the Killstar Resurrect Marketplace.

FYI: All pre-loved goods are Final Sale and are fulfilled by the KILLSTAR community. See our FAQs for details.

Learn out more about RESURRECT