1. All retailers
  2. Marks & Spencer Deals

3pk Heavy Absorbency Period Bikini Knickers

Available from Marks & Spencer

With their high absorbency, these Supima® cotton-modal period knickers provide greater protection on heavier days. High-leg bikini shape sits low on your hips with good bottom coverage, and added stretch creates a smooth outline. Our StayNew™ technology keeps your undies looking newer for longer. Made with responsibly sourced Tencel™ modal. We only ever use responsibly sourced cotton for our clothes. M&S Collection: versatile styles in modern shapes with unique and playful details.

When making the swap to period knickers, we’d recommend wearing them at home for one day, so you can get to know your flow. This will help you to decide the best level of absorbency for you (light or high) and how frequently to change your knickers. Patent No. GB2588289 & GB2586813

Details & care


Added stretch


46% cotton, 46% modal and 8% elastane (exclusive of trimmings), Gusset (of underwear) - 84% polyester, 16% polyamide, Gusset (of underwear) - 100% polyester


Wash at 40°C

Do not bleach

Do not tumble dry

Iron at low temperature

Do not dry clean

Tom Church
Tom's Tips for Marks & Spencer
  • Join M&S Sparks loyalty scheme for free. You earn "Sparks" as you shop which turn into rewards. Plus, in the past, members have received emails giving £5 off shopping; early access to sales; and invitations to special events.
  • Free home delivery when you spend £60 or more. Also free store collection. Standard delivery costs £3.50. Next day delivery costs £4.99.
Marks & Spencer Reviews
from 35 reviews
Add review
What do you think of this Marks & Spencer deal?+20 points

These are great knickers and really comfy. Even better when they are on offer so I will be buying more. Thanks for sharing

Rate Posts
Good or Bad?
Rate deals, earn Amazon vouchers!
Play Now
The best deals, straight to your inbox

Join Latest Deals for free and get a hand-picked list of the best deals, delivered straight to your inbox. Fancy yourself as a bit of a bargain hunter? Share deals you find and earn Amazon vouchers!

Tom Church
Co-Founder &
Chief Bargain Hunter
Tom Church, Co-Founder
We value your privacy

We use cookies to help give you the best experience on our website with improved customisation, analytics & advertising (inc. personalisation). You can read our full cookie policy. Please either , or .