Luxury & super warm Freezer Jackets, Trousers & Salopettes - EN342 CERTIFIED. The 330 freezer collection is a traditional style of freezer clothing which is very warm and hard wearing, a favorite among many coldstore workers. The jacket has a double layer of 150g ‘Clo Insulation’ with a combined 300g of performance insulation keeping you very warm whilst striking the balance with breathability. Included in this collection is the Jacket, trouser, salopettes and coverall. These garments are ideally suited for those which prefer thicker padded workwear with a higher level of warmth whilst working in the coldstore.