We are moving warehouse, so to reduce our stock holding , we are selling over 600 products at cost or less to clear - Fast shipping as normal — we're just lightening the load!
product review overlay image
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
View more images
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free
NatureFlex™ Clear Gusseted Heat Seal Bags | Home Compostable & Plastic-Free

Product Description

NatureFlex™ Clear Flat Heat Seal Bags – 100% Plastic-Free & Home Compostable

The sustainable, crystal-clear alternative to traditional plastic bags.

Elevate your eco-friendly credentials with our NatureFlex™ Clear Heat Sealable Bags. Engineered for businesses that refuse to compromise on quality or the planet, these bags offer the high-clarity and barrier protection of plastic but are made entirely from renewable wood pulp.

Whether you’re packaging artisan chocolates, loose-leaf teas, or handmade wax melts, these bags provide a professional finish that shows your customers you care about the environment.

Please note that our Natureflex™ flat bags are designed for thinner items like cookies, if you need thicker bags such as baguettes and pastries you need our Natureflex™ gusset bags.

Why Choose Our NatureFlex™ Bags?

  • Pack / Box Size: 100 bags or
  • Size Options: Choose from five different sizes (see below)
  • Home Compostable: Certified for both home (OK Compost Home) and industrial composting. They break down naturally in a garden compost heap, leaving no toxic residue or microplastics behind.
  • Low-Energy Heat Sealing: Designed to seal at lower temperatures than standard plastic, helping you reduce energy consumption. (Can also be sealed with our plant-based labels or our double-sided high-tac tape.
  • Superior Freshness: Featuring a natural moisture barrier and thicker 30-micron material, these bags extend the shelf life of your products and keep them tasting (or smelling) fresh.
  • Anti-Fog Technology: The natural material prevents fogging in chilled cabinets, ensuring your products always look their best for customers.
  • Extra Strength: A crimped bottom provides added durability, making them perfect for heavier or bulkier items.
  • Made from wood (yes you read that correctlyNatureflex™ is made using cellulose (derived from renewable certifiedwood pulp from well managed forestry stock.
  • Certified & Tested : To tested to a huge range of international standards see below.
  • Food Safe & Planet Friendly™: All the benefits of plastics bags with none of the environmental downsides.
  • Buy More, Save More Stocking up? maximize your budget with our exclusive volume discounts. Check the table below to see how much you can save when you order in larger quantities.

Please note the bags shown are our Kraft bags with Natureflex™ window, but sealing these bags is the same as above,

Guide to choosing the right bag
Product Code Size Size Size
NFB127x76 Small 127 x 76mm 5 x 3 inch
NFB150x100 Standard 150 x 100mm 6 x 4 inch
NFB180x70 Medium 180 x 70mm  7 x 2¾ inch
NFB250x150 Large 250 x 150mm 9.8 x 6 inch
NFB300x180 XL 300 x 180mm 11¾ x 7 inch
(size excludes crimp area of 15 mm) 
Bulk Discounts
Number of Boxes New Customers  Returning Customers
2 to 4 5% 15%
5 to 9 7.5% 17.5%
10 to 24 10% 20%
25 to 49 12.5% 22.5%
50 to 99 15% 25%
100 or more  20% 30%
Product Specifications
Material: NatureFlex™ (Cellulose from wood pulp)
Design Expandable gusset for extra volume and stability.
Thickness: 30 microns for premium feel and strength.
Certification OK™ (EN13432) , BPI™ (ASTM D6400) certified as compostable for home composting and commercial composting, Marine biodegradations standard ASTM D6691-09 along with additional testing to Feed a Field™ Certification standards for durability and non toxic decomposition & USDA certified as bio based.
Temperature Guide -20°C to 80°C -4 to 176°f
Thickness 30 microns
Applications Ideal for ambient and chilled products, confectionery, snacks, seeds, and non-food items like soaps or crafts.
Storage & Disposal Please check the storage and disposal tab.
Read More

Product Info

GTIN
5060912570744
Size
Large
Material
Natureflex™ from Wood
MPN
S11-N002-1x1000b
Catergory
Compostable Bags
Product Type
Natureflex Flat Bags
Country of Origin
United Kingdom
Heat
Cold & Warm Foods
HS Code
4819400000
Bag Size
Standard Natureflex Bags
Disposable Options
Compost Me
Dimensions
L150 x W100mm (6 x 4")
Design
Natureflex Clear
Pack or Box
Box
Disposal
Compost Me
Bag Type
Natureflex Bags
Brand
NatureFlex™
Product Code
S1-NFB127x76-1x100
Weight
0.31kg

Delivery

Honest Low Cost Delivery

UK Royal Mail Tracked 48 - £3.99

 Next Working Day - £19.99

Free delivery for order over £125 (UK Only)

Worldwide from £8.99

Customer Reviews

NatureFlex Clear Flat Heat Seal Bags |100% Plastic-Free | Home Compostable

Product Code S1-NFB127x76-1x100

Packs of 100 bags
5 sizes available
Heat Sealable & Plastic Free
Keeping it fresh &  forest-friendly

All of our products

Find over 400 plant based products here

Browse our entire range here

Food packaging

Plant based Food

Buy Food Packaging

Drink Packaging

Find our plant based drink packaging here

Buy Drink Packaging

The Pure Option News

Eco Facts 10

9th June 2026

Eco Facts 10

☀️ UK SOLAR POWER IS SIZZLING! 🇬🇧🔋

Read more
Our upset the accountant sale is still on

9th June 2026

Our upset the accountant sale is still on

You may be aware we are closing one of our warehouses to move to a fullfillment model , our Accountant liked this, but what he isn't thrilled with is we don't want to move the boxes, we want to sell them off at COST or LESS.

Read more
Stay In Your Lane

5th June 2026

Stay In Your Lane

The Maple Review has been released and reading it reminded me of my time as a former Business Advisor on the Department for Work & Pensions New Enterprise Allowance program and I would quite often here from referrals one of the following - "Stay...

Read more

Plant Based Brands

Awards

Certification