Tyvek Gusseted Envelopes Extra Capacity Strong C4 H324xW229xD38mm White Ref R4120 [Pack of 100]

Amazon

Tear-resistant, water resistant, mould-free and PH Neutral C4 size The gusset allows for perfect fit of the contents and will not burst even when filled to capacity Strong hot melt peel & Seal closure for a secure and fast seal 100 Tyvek envelopes

Euroffice

Gusset envelope designed to be water and tear resistant. Made of 100% high density polyethylene fibres (HDPE). Extra strong hot melt peel and seal closure. Size: C4 (324 x 229 x 38mm). Colour: white. Pack of 100.