All orders containing items in this Clearance section must be part of a minimum cart total of ?10 ex VAT - These Tyvek envelopes are made from 100% recyclable, high density polythene fibres (HDPE), which is tear and water resistant for extra security in transit. These envelopes have an expanding 38mm gusset and extra strong hot melt peel and seal closure. These lightweight, flexible B4 envelopes measure 353 x 250mm. This pack contains 100 white envelopes.